I have one of them Hard Disk swithces so you can select a bootable Disk. The purpose is to have multiple OS or whatever. I like it cause my kids can crash and burn HD #1 (win98 with games), then dad can come home and reboot with HD #2 (XP with CAD stuff). I can then fix their stuff when time permits. My Question is this. In the exact same BOX w/ exact same hardware, can I install XP on Two drives? I realize the spirit of the liscence agreement "for one PC only"....but this "IS" one PC. I would like to have HD #1=WinXP and HD #2= Win XP.