Ultra pack - 220 color schemes
Source (required if based on other people's work):
daX's KDE3 .kcsrc colour schemes converted to .gnomecc - also provided a Python converter inside
The original colour schemes you can find at http://kde-look.org/content/show.php?content=72811&vote=good&tan=98625133
Please remember i'm not the author of these colour schemes (since they are GPL btw) - i only coded the converter and converted them to .gnomecc - all credits are for daX! :-)
for people don't know how to use them: in the screenshot you can see a window of the tool 'gnome color chooser'. There, you do 'menu:file>open' and choose the .gnomecc file as needed (from the downloadable file from this post, for example). Later you just click on Apply button.
(if you're an Ubuntu/Debian user, doing 'sudo apt-get install gnome-color-chooser' in the terminal should be enough for installing this tool)