] So, you wanna make your ugly Windows XP interface look
] like Mac OS X, huh? It%u2019s really not all that
] difficult to do, and with a little luck, you%u2019ll be
] able to convince all but the most die-hard Mac users that
] you run an Apple computer. First, here%u2019s a list of
] the programs you%u2019ll need:

This could be fun...

Turn your PC into a Mac - Features - Engadget - features.engadget.com