diff --git a/pkgs/desktops/kde-4.2/base-runtime/default.nix b/pkgs/desktops/kde-4.2/base-runtime/default.nix
new file mode 100644
index 000000000000..690f03e8a209
--- /dev/null
+++ b/pkgs/desktops/kde-4.2/base-runtime/default.nix
@@ -0,0 +1,13 @@
+{stdenv, fetchurl, cmake, perl, bzip2, qt4, alsaLib, xineLib, samba, kdelibs,
+ automoc4, phonon, strigi, soprano, cluceneCore}:
+
+stdenv.mkDerivation {
+  name = "kdebase-runtime-4.2.0";
+  src = fetchurl {
+    url = mirror://kde/stable/4.2.0/src/kdebase-runtime-4.2.0.tar.bz2;
+    md5 = "8ef48aae16a6dddb3055d81d7e5c375f";
+  };
+/*  CLUCENE_HOME=cluceneCore;*/
+  buildInputs = [ cmake perl bzip2 qt4 alsaLib xineLib samba stdenv.gcc.libc kdelibs
+                  automoc4 phonon strigi soprano cluceneCore ];
+}
diff --git a/pkgs/desktops/kde-4.2/base-workspace/default.nix b/pkgs/desktops/kde-4.2/base-workspace/default.nix
new file mode 100644
index 000000000000..0cc523eb56f6
--- /dev/null
+++ b/pkgs/desktops/kde-4.2/base-workspace/default.nix
@@ -0,0 +1,16 @@
+{stdenv, fetchurl, cmake, perl, python,
+qt4, kdelibs,
+libXi, libXau, libXdmcp, libXtst, libXcomposite, libXdamage,
+lm_sensors, libxklavier, libusb, pthread_stubs,
+automoc4, phonon, strigi, soprano, qimageblitz}:
+
+stdenv.mkDerivation {
+  name = "kdebase-workspace-4.2.0";
+  src = fetchurl {
+    url = mirror://kde/stable/4.2.0/src/kdebase-workspace-4.2.0.tar.bz2;
+    md5 = "193e30b9ed0b55b0196289d9df43a904";
+  };
+  buildInputs = [ cmake perl python qt4 kdelibs pthread_stubs libusb stdenv.gcc.libc
+                  libXi libXau libXdmcp libXtst libXcomposite libXdamage
+                  lm_sensors libxklavier automoc4 phonon strigi soprano qimageblitz ];
+}
diff --git a/pkgs/desktops/kde-4.2/base/default.nix b/pkgs/desktops/kde-4.2/base/default.nix
new file mode 100644
index 000000000000..992f1d22dd63
--- /dev/null
+++ b/pkgs/desktops/kde-4.2/base/default.nix
@@ -0,0 +1,12 @@
+{stdenv, fetchurl, cmake, perl, qt4, kdelibs, pciutils, libraw1394,
+ automoc4, phonon, strigi, qimageblitz, soprano}:
+
+stdenv.mkDerivation {
+  name = "kdebase-4.2.0";
+  src = fetchurl {
+    url = mirror://kde/stable/4.2.0/src/kdebase-4.2.0.tar.bz2;
+    md5 = "da86a8ad624e86eda3a7509f39272060";
+  };
+  buildInputs = [ cmake perl qt4 kdelibs pciutils libraw1394
+                  automoc4 phonon strigi qimageblitz soprano ];
+}
diff --git a/pkgs/desktops/kde-4.2/default.nix b/pkgs/desktops/kde-4.2/default.nix
index 0376b4006c43..9b9e6f8d74a5 100644
--- a/pkgs/desktops/kde-4.2/default.nix
+++ b/pkgs/desktops/kde-4.2/default.nix
@@ -24,8 +24,33 @@ rec {
     inherit (pkgs) qt4 jdk cluceneCore redland;
   };
   
+  qimageblitz = import ./support/qimageblitz {
+    inherit (pkgs) stdenv fetchurl cmake qt4;
+  };
+  
 ### LIBS
   kdelibs = import ./libs (pkgs // {
     inherit automoc4 phonon strigi soprano;
   });
+  
+  kdebase_workspace = import ./base-workspace {
+    inherit (pkgs) stdenv fetchurl cmake qt4 perl python;
+    inherit (pkgs) lm_sensors libxklavier libusb pthread_stubs;
+    inherit (pkgs.xlibs) libXi libXau libXdmcp libXtst libXcomposite libXdamage;
+    inherit kdelibs;
+    inherit automoc4 phonon strigi soprano qimageblitz;
+  };
+  
+  kdebase = import ./base {
+    inherit (pkgs) stdenv fetchurl cmake perl qt4 pciutils libraw1394;
+    inherit kdelibs;
+    inherit automoc4 phonon strigi qimageblitz soprano;
+  };
+  
+  kdebase_runtime = import ./base-runtime {
+    inherit (pkgs) stdenv fetchurl cmake perl bzip2 qt4;
+    inherit (pkgs) xineLib alsaLib samba cluceneCore;
+    inherit kdelibs;
+    inherit automoc4 phonon strigi soprano;
+  };
 }
diff --git a/pkgs/desktops/kde-4.2/support/qimageblitz/default.nix b/pkgs/desktops/kde-4.2/support/qimageblitz/default.nix
new file mode 100644
index 000000000000..8e3dd70e2806
--- /dev/null
+++ b/pkgs/desktops/kde-4.2/support/qimageblitz/default.nix
@@ -0,0 +1,10 @@
+{stdenv, fetchurl, cmake, qt4}:
+
+stdenv.mkDerivation {
+  name = "qimageblitz-0.0.4";
+  src = fetchurl {
+    url = mirror://sourceforge/qimageblitz/qimageblitz-0.0.4.tar.bz2;
+    md5 = "cb87c7f1c0455e8984ee4830f1e749cf";
+  };
+  buildInputs = [ cmake qt4 ];
+}