A bare bones theme to demonstrate the basics of theme creation.
Cool dark blue(ish) for modern browsers
a nice modern theme with fixed width
Black and White theme.
Brown/Orange theme with palm trees and island feeling to it
Simple layout dark / green theme with Guitar part of theme
Plain Grey Theme with open layout.
Slick, minimal and clean corporate theme
Tango Color based theme
The theme used for gpEasy.com beginning with version 2.0
Very nice 2col theme from Hungary
Theme with a easy to use banner-rotator
Dark and creamy colored theme.