diff --git a/pkgs/applications/video/vlc/builder.sh b/pkgs/applications/video/vlc/builder.sh
deleted file mode 100644
index e12aec4e5277..000000000000
--- a/pkgs/applications/video/vlc/builder.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-buildinputs="$x11 $wxGTK $libdvdcss $libdvdread $libdvdplay $mpeg2dec $a52dec $libmad $alsa"
-. $stdenv/setup || exit 1
-
-tar xvfz $src || exit 1
-cd vlc-* || exit 1
-./configure --prefix=$out \
- --disable-ffmpeg \
- --enable-alsa \
- || exit 1
-make || exit 1
-make install || exit 1
diff --git a/pkgs/applications/video/vlc/default.nix b/pkgs/applications/video/vlc/default.nix
index 4b554fd6e23e..f4540a882f53 100644
--- a/pkgs/applications/video/vlc/default.nix
+++ b/pkgs/applications/video/vlc/default.nix
@@ -7,21 +7,17 @@ assert x11 != null && wxGTK != null && libdvdcss != null
 assert libdvdplay.libdvdread.libdvdcss == libdvdcss;
 
 stdenv.mkDerivation {
-  name = "vlc-0.7.0";
+  name = "vlc-0.7.1";
 
-  builder = ./builder.sh;
   src = fetchurl {
-    url = http://download.videolan.org/pub/videolan/vlc/0.7.0/vlc-0.7.0.tar.gz;
-    md5 = "05efef68528892ca933585c7db0842e3";
+    url = http://download.videolan.org/pub/videolan/vlc/0.7.1/vlc-0.7.1.tar.gz;
+    md5 = "faa5e3162a3e9b3a3d8c3dcc06f70911";
   };
 
-  x11 = x11;
-  wxGTK = wxGTK;
-  libdvdcss = libdvdcss;
-  libdvdplay = libdvdplay;
-  libdvdread = libdvdplay.libdvdread;
-  mpeg2dec = mpeg2dec;
-  a52dec = a52dec;
-  libmad = libmad;
-  alsa = alsa;
+  buildInputs = [
+    x11 wxGTK libdvdcss libdvdplay libdvdplay.libdvdread
+    mpeg2dec a52dec libmad alsa
+  ];
+
+  configureFlags = "--disable-ffmpeg --enable-alsa";
 }
diff --git a/pkgs/development/libraries/a52dec/builder.sh b/pkgs/development/libraries/a52dec/builder.sh
deleted file mode 100644
index 1899153fa34b..000000000000
--- a/pkgs/development/libraries/a52dec/builder.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-. $stdenv/setup || exit 1
-
-tar xvfz $src || exit 1
-cd a52dec-* || exit 1
-./configure --prefix=$out || exit 1
-make || exit 1
-make install || exit 1
-strip -S $out/lib/*.a || exit 1
diff --git a/pkgs/development/libraries/a52dec/default.nix b/pkgs/development/libraries/a52dec/default.nix
index 20692fafb26a..4a75e11ec304 100644
--- a/pkgs/development/libraries/a52dec/default.nix
+++ b/pkgs/development/libraries/a52dec/default.nix
@@ -1,6 +1,7 @@
-{stdenv, fetchurl}: stdenv.mkDerivation {
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation {
   name = "a52dec-0.7.4";
-  builder = ./builder.sh;
   src = fetchurl {
     url = http://liba52.sourceforge.net/files/a52dec-0.7.4.tar.gz;
     md5 = "caa9f5bc44232dc8aeea773fea56be80";
diff --git a/pkgs/development/libraries/libdvdcss/builder.sh b/pkgs/development/libraries/libdvdcss/builder.sh
deleted file mode 100644
index c7bd41840bb1..000000000000
--- a/pkgs/development/libraries/libdvdcss/builder.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-. $stdenv/setup || exit 1
-
-tar xvfz $src || exit 1
-cd libdvdcss-* || exit 1
-./configure --prefix=$out || exit 1
-make || exit 1
-make install || exit 1
-strip -S $out/lib/*.a || exit 1
diff --git a/pkgs/development/libraries/libdvdcss/default.nix b/pkgs/development/libraries/libdvdcss/default.nix
index fe51ca0bb1f3..c26344729642 100644
--- a/pkgs/development/libraries/libdvdcss/default.nix
+++ b/pkgs/development/libraries/libdvdcss/default.nix
@@ -1,6 +1,7 @@
-{stdenv, fetchurl}: stdenv.mkDerivation {
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation {
   name = "libdvdcss-1.2.8";
-  builder = ./builder.sh;
   src = fetchurl {
     url = http://www.videolan.org/pub/videolan/vlc/0.6.2/contrib/libdvdcss-1.2.8.tar.gz;
     md5 = "e35e4240b6ca0b66a0218065dffe6adb";
diff --git a/pkgs/development/libraries/libdvdplay/builder.sh b/pkgs/development/libraries/libdvdplay/builder.sh
deleted file mode 100644
index 686288592b3c..000000000000
--- a/pkgs/development/libraries/libdvdplay/builder.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-buildinputs="$libdvdread"
-. $stdenv/setup || exit 1
-
-tar xvfj $src || exit 1
-cd libdvdplay-* || exit 1
-./configure --prefix=$out || exit 1
-make || exit 1
-make install || exit 1
-strip -S $out/lib/*.a || exit 1
diff --git a/pkgs/development/libraries/libdvdplay/default.nix b/pkgs/development/libraries/libdvdplay/default.nix
index 820d9df2f8a4..09a7f785be32 100644
--- a/pkgs/development/libraries/libdvdplay/default.nix
+++ b/pkgs/development/libraries/libdvdplay/default.nix
@@ -4,10 +4,10 @@ assert libdvdread != null;
 
 stdenv.mkDerivation {
   name = "libdvdplay-1.0.1";
-  builder = ./builder.sh;
   src = fetchurl {
     url = http://www.videolan.org/pub/libdvdplay/1.0.1/libdvdplay-1.0.1.tar.bz2;
     md5 = "602bca4ef78d79aa87e5e8920d958a78";
   };
-  libdvdread = libdvdread;
+  buildInputs = [libdvdread];
+  inherit libdvdread;
 }
diff --git a/pkgs/development/libraries/libdvdread/builder.sh b/pkgs/development/libraries/libdvdread/builder.sh
index 1581116ce53f..9173ce1b205e 100644
--- a/pkgs/development/libraries/libdvdread/builder.sh
+++ b/pkgs/development/libraries/libdvdread/builder.sh
@@ -1,9 +1,5 @@
-buildinputs="$libdvdcss"
-. $stdenv/setup || exit 1
+. $stdenv/setup
 
-tar xvfj $src || exit 1
-cd libdvdread-* || exit 1
-./configure --prefix=$out --with-libdvdcss="$libdvdcss" || exit 1
-make || exit 1
-make install || exit 1
-strip -S $out/lib/*.a || exit 1
+configureFlags="--with-libdvdcss=$libdvdcss"
+
+genericBuild
diff --git a/pkgs/development/libraries/libdvdread/default.nix b/pkgs/development/libraries/libdvdread/default.nix
index 926180384d1e..de6fc15368ca 100644
--- a/pkgs/development/libraries/libdvdread/default.nix
+++ b/pkgs/development/libraries/libdvdread/default.nix
@@ -9,5 +9,6 @@ stdenv.mkDerivation {
     url = http://www.videolan.org/pub/videolan/vlc/0.6.2/contrib/libdvdread-20030812.tar.bz2;
     md5 = "9d58beac7c2dfb98d00f4ed0ea3d7274";
   };
-  libdvdcss = libdvdcss;
+  buildInputs = libdvdcss;
+  inherit libdvdcss;
 }
diff --git a/pkgs/development/libraries/libmad/builder.sh b/pkgs/development/libraries/libmad/builder.sh
deleted file mode 100644
index b6a916f74b64..000000000000
--- a/pkgs/development/libraries/libmad/builder.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-. $stdenv/setup || exit 1
-
-tar xvfz $src || exit 1
-cd libmad-* || exit 1
-./configure --prefix=$out || exit 1
-make || exit 1
-make install || exit 1
-strip -S $out/lib/*.a || exit 1
diff --git a/pkgs/development/libraries/libmad/default.nix b/pkgs/development/libraries/libmad/default.nix
index a7441fbe6f22..7e5a93f229ac 100644
--- a/pkgs/development/libraries/libmad/default.nix
+++ b/pkgs/development/libraries/libmad/default.nix
@@ -1,6 +1,7 @@
-{stdenv, fetchurl}: stdenv.mkDerivation {
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation {
   name = "libmad-0.15.0b";
-  builder = ./builder.sh;
   src = fetchurl {
     url = http://heanet.dl.sourceforge.net/sourceforge/mad/libmad-0.15.0b.tar.gz;
     md5 = "2e4487cdf922a6da2546bad74f643205";
diff --git a/pkgs/development/libraries/mpeg2dec/builder.sh b/pkgs/development/libraries/mpeg2dec/builder.sh
deleted file mode 100644
index 6dc6a220e924..000000000000
--- a/pkgs/development/libraries/mpeg2dec/builder.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-. $stdenv/setup || exit 1
-
-tar xvfz $src || exit 1
-cd mpeg2dec-* || exit 1
-./configure --prefix=$out || exit 1
-make || exit 1
-make install || exit 1
-strip -S $out/lib/*.a || exit 1
diff --git a/pkgs/development/libraries/mpeg2dec/default.nix b/pkgs/development/libraries/mpeg2dec/default.nix
index a57314a3fddd..bc31f0731dec 100644
--- a/pkgs/development/libraries/mpeg2dec/default.nix
+++ b/pkgs/development/libraries/mpeg2dec/default.nix
@@ -1,8 +1,9 @@
-{stdenv, fetchurl}: stdenv.mkDerivation {
-  name = "mpeg2dec-20030612";
-  builder = ./builder.sh;
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation {
+  name = "mpeg2dec-0.4.0b";
   src = fetchurl {
-    url = http://libmpeg2.sourceforge.net/files/mpeg2dec-0.4.0.tar.gz;
-    md5 = "49a70fef1b0f710ed7e64ed32ee82d4d";
+    url = http://libmpeg2.sourceforge.net/files/mpeg2dec-0.4.0b.tar.gz;
+    md5 = "52d10ea80595ec83d8557ba7ac6dc8e6";
   };
 }
diff --git a/pkgs/development/libraries/wxGTK/builder.sh b/pkgs/development/libraries/wxGTK/builder.sh
deleted file mode 100644
index d2b0880add93..000000000000
--- a/pkgs/development/libraries/wxGTK/builder.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-buildinputs="$pkgconfig $gtk $libtiff $libjpeg $libpng $zlib"
-. $stdenv/setup
-
-extraflags=
-if test -z "$compat22"; then
-  extraflags="--disable-compat22 $extraflags"
-fi
-
-tar xvfj $src
-cd wxGTK-*
-./configure --prefix=$out --enable-gtk2 $extraflags
-make
-make install
diff --git a/pkgs/development/libraries/wxGTK/default.nix b/pkgs/development/libraries/wxGTK/default.nix
index 27bfcf2ebff9..a30aaa1b81d9 100644
--- a/pkgs/development/libraries/wxGTK/default.nix
+++ b/pkgs/development/libraries/wxGTK/default.nix
@@ -9,15 +9,17 @@ assert gtk.libpng.zlib != null;
 stdenv.mkDerivation {
   name = "wxGTK-2.4.2";
 
-  builder = ./builder.sh;
   src = fetchurl {
     url = http://heanet.dl.sourceforge.net/sourceforge/wxwindows/wxGTK-2.4.2.tar.bz2;
     md5 = "cdadfe82fc93f8a65a2ae18a95b0b0e3";
   };
 
-  libtiff = gtk.libtiff;
-  libjpeg = gtk.libjpeg;
-  libpng = gtk.libpng;
-  zlib = gtk.libpng.zlib;
-  inherit pkgconfig gtk compat22;
+  buildinputs = [pkgconfig gtk gtk.libtiff gtk.libjpeg gtk.libpng gtk.libpng.zlib];
+
+  configureFlags = [
+    "--enable-gtk2"
+    (if compat22 then "--enable-compat22" else "--disable-compat22")
+  ];
+
+  inherit gtk compat22;
 }
diff --git a/pkgs/development/python-modules/wxPython/builder.sh b/pkgs/development/python-modules/wxPython/builder.sh
index 3e36d3f40453..724ddd2e2390 100644
--- a/pkgs/development/python-modules/wxPython/builder.sh
+++ b/pkgs/development/python-modules/wxPython/builder.sh
@@ -1,6 +1,20 @@
-buildinputs="$wxGTK $python $pkgconfig $gtk"
 . $stdenv/setup
 
-tar xvfz $src
-cd wxPythonSrc-*/wxPython
-python setup.py WXPORT=gtk2 BUILD_GLCANVAS=0 BUILD_OGL=0 build install --prefix=$out
+flags="WXPORT=gtk2 BUILD_GLCANVAS=0 BUILD_OGL=0"
+
+configurePhase() {
+    cd wxPython
+}
+configurePhase=configurePhase
+
+buildPhase() {
+    python setup.py $flags build
+}
+buildPhase=buildPhase
+
+installPhase() {
+    python setup.py $flags install --prefix=$out
+}
+installPhase=installPhase
+
+genericBuild
\ No newline at end of file
diff --git a/pkgs/development/python-modules/wxPython/default.nix b/pkgs/development/python-modules/wxPython/default.nix
index 65dda5e5671d..c4844568a3f7 100644
--- a/pkgs/development/python-modules/wxPython/default.nix
+++ b/pkgs/development/python-modules/wxPython/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl, wxGTK, python}:
+{stdenv, fetchurl, pkgconfig, wxGTK, python}:
 
 assert wxGTK.compat22;
 
@@ -9,7 +9,6 @@ stdenv.mkDerivation {
     url = http://heanet.dl.sourceforge.net/sourceforge/wxpython/wxPythonSrc-2.4.2.4.tar.gz;
     md5 = "ea4eb68e10a0c2a9be643b35dcb78e41";
   };
-  pkgconfig = wxGTK.pkgconfig;
-  gtk = wxGTK.gtk;
-  inherit wxGTK python;
-}
+  buildInputs = [pkgconfig wxGTK (wxGTK.gtk) python];
+  inherit wxGTK; # !!! move this down
+} // { inherit python; } 
diff --git a/pkgs/os-specific/linux/alsa/library/builder.sh b/pkgs/os-specific/linux/alsa/library/builder.sh
deleted file mode 100644
index eabae65a3c8d..000000000000
--- a/pkgs/os-specific/linux/alsa/library/builder.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-. $stdenv/setup || exit 1
-
-tar xvfj $src || exit 1
-cd alsa-* || exit 1
-./configure --prefix=$out || exit 1
-make || exit 1
-make install || exit 1
diff --git a/pkgs/os-specific/linux/alsa/library/default.nix b/pkgs/os-specific/linux/alsa/library/default.nix
index 02e3b1d49c73..ffbc9b4089ca 100644
--- a/pkgs/os-specific/linux/alsa/library/default.nix
+++ b/pkgs/os-specific/linux/alsa/library/default.nix
@@ -1,8 +1,9 @@
-{stdenv, fetchurl}: stdenv.mkDerivation {
-  name = "alsa-lib-0.9.8";
-  builder = ./builder.sh;
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation {
+  name = "alsa-lib-1.0.3b";
   src = fetchurl {
-    url = ftp://ftp.alsa-project.org/pub/lib/alsa-lib-0.9.8.tar.bz2;
-    md5 = "c9f163fb0623de1b92bf287712641f6e";
+    url = ftp://ftp.alsa-project.org/pub/lib/alsa-lib-1.0.3b.tar.bz2;
+    md5 = "8ade68f0e9d44a039a741052985a8635";
   };
 }
diff --git a/pkgs/system/all-packages-generic.nix b/pkgs/system/all-packages-generic.nix
index 8ce50c8e1b3c..1da3a33366a0 100644
--- a/pkgs/system/all-packages-generic.nix
+++ b/pkgs/system/all-packages-generic.nix
@@ -479,11 +479,7 @@ rec {
   };
 
   wxGTK = (import ../development/libraries/wxGTK) {
-    inherit fetchurl stdenv;
-    fetchurl = fetchurl;
-    stdenv = stdenv;
-    pkgconfig = pkgconfig;
-    gtk = gtk;
+    inherit fetchurl stdenv pkgconfig gtk;
   };
 
   gnet = (import ../development/libraries/gnet) {
@@ -605,7 +601,7 @@ rec {
   };
 
   wxPython = (import ../development/python-modules/wxPython) {
-    inherit fetchurl stdenv wxGTK python;
+    inherit fetchurl stdenv pkgconfig wxGTK python;
   };
 
 
diff --git a/pkgs/system/populate-cache.nix b/pkgs/system/populate-cache.nix
index ba135ab9289e..8f7011384b97 100644
--- a/pkgs/system/populate-cache.nix
+++ b/pkgs/system/populate-cache.nix
@@ -45,7 +45,7 @@ let {
       pkgs.MPlayer
       pkgs.MPlayerPlugin
 #      pkgs.vlc
-      pkgs.zapping
+#      pkgs.zapping
       pkgs.gqview
       pkgs.hello
       pkgs.nxml