So you've been dying to house that old Power Mac 7600 in a vintage Zenith radio from the 1940s? Hey, who hasn't? Or maybe you took a look at the beat-up Mac SE sitting in the deeper recesses of your closet and thought, "If only I knew how to encase it in Mega Blocks." Join the club, pal. Applefritter.com can tell you how to build the customized Mac of your dreams. The site, a virtual museum for Mac aficionados, features classic, prototype, and limited-edition Macs, such as the Macintosh TV and the Power Express--a G3 machine with six PCI slots. But its main draws are the tricked-out custom builds that, should you try to duplicate them, will void your warranty faster than you can say, "Wozniak wept." Undaunted, Applefritter posts build notes and photographs for the brave of heart so that you, too, can have a G3 stuffed with Christmas tree lights. Even if you're not the fearless type, the site's still worth checking out for the Darth Maul PowerBook, which all the kids will want this holiday season.