entcity.com I just went by nVIDIA's download section and found some cool stuff. Some of them may be old, can't remember.... Anyway here we go:

Screensaver: Ecto Saver
Screensaver: nVIDIA Logo
Screensaver: nVIDIA Ripple
Screensaver: Silex Skeleton
Wallpaper: nVIDIA Chameleon
Wallpaper: nVIDIA Ripple