I guess what I'm really asking is how my 2 HDs would interact with eachother in a duel boot setup.
I really don't want to reformat the HD I'm using right now. I have several programs on it that would be a hassel to reauthinticate, and I KNOW the setup I have right now is stable. WinXP64 doesn't seem to be the most stable of OSs right now, and while it does great things for 64edition games, running Maple from it would make me nervous.