T-ish Pack provides a fast Clearlooks and Ubuntulooks themes for Gnome made to loosely resemble OSX Tiger.
They fit well with Compiz also.
T-ish - Clearlooks theme
T-ish Aguastyle - Clearlooks theme with some pixmap elements
T-ish-Ubuntulooks - Ubuntlooks theme
T-ish-Ubuntulooks Aguastyle - Ubuntulooks theme with some pixmap elements
T-ish-Ubuntulooks Graphite - same as above but thanks to Alejandro Cornejo
Based on Clearlooks or Ubuntulooks engines, Ish GTK theme with additional buttons from Expose and GlossyP metacity borders (with many thanks to authors).
For best results use OSX icons, jaguarx mouse theme, and FoxiTiger firefox skin (links below).
IMPORTANT: In order to install all of the themes you'll have to manually extract to ~/.themes dir.
IMPORTANT 2: In order for scrollbars to work on Ubuntu Edgy you have to install gtk2-engines-pixbuf package.
· ubuntulooks engine