I would, for the pure reasoning of (a), I can freak out my friends by putting Windows on a Mac, (b), so I can convince my parents to buy an iMac because they can keep Windows, and I can have Mac OS X, and (c), so I can do anything on an iBook, cause I have windows to take care of anything I can't do on OS X. It's the only way I can't lose!😉 (besides, then I can do a science fair project on whether which hand you use has an effect on which OS you prefer on 1 computer! i can't do it this year because I'm missing the Mac half-got the Windows part right here!)