Pretty Loaded ScreenSaver

Different load screens on this site. You can also download the screensaver for PC or Mac.
Free Wallpaper 4 Me

High resolution desktop backgrounds.
21 Free 3D Wallpapers For Your Computer

Just click on each image to download.
Free ScreenSavers From Duraflame

Neighborhood, Crackling Fire Log, or Evolution Of Fire. For both Mac and PC.
Disk Defrag ScreenSaver

Auslogics Disk Defrag Screen Saver is a handy tool that allows users to run defragmentation of their hard drives in screensaver mode. Like other screensavers in Windows, it starts automatically when a system has been idle for a few moments.
Free High Res Wallpaper

From 2009 National Geographic International Photography Contest. Some of these are amazing!
Always Collections Desktop Themes

Sport resources : desktop themes, savers, wallpapers and skins incl. soccer, basketball, tennis, wrestling, hockey, football, watersport, boxing, etc.
JoBlow\'s Movie Screensavers

A complete guide to free movie screensavers on the Net. Well over 1,000 movies listed here with screenshots.