Another interesting tidbit is that you can copy any Screensaver that ends with the extension .qtz and paste it into your Macintosh HD > Library > Compositions folder and use it for a Photo Booth/AOL Instant Messenger (through iChat) super background!
Apple Designs New MacBooks To Withstand Drops, 45. Caliber Rounds
How To: Use Screensaver Images as your Wallpaper
How To: Use Screensaver Images as your Wallpaper