Check out UselessCreations.com its where I got my 3D Christmas Screensaver. But this new Matrix Reloaded screensaver is pretty hip too.

v2.0 - 7th May, 2003 - Major update:

* Changed the way the code is displayed so it's even more 3D-ish.
* Changed the 3D Code Rotation option. It will now randomly rotate in all sorts of direction. This looks amazing.
* Added 12 hour mode option to the clock.
* Added ability to display your own pictures in the donor version