Let me ask this. This is my initial plan for now. When I buy XP I plan on dual-booting with W98SE. (Mainly just to test my hardware/software.) When I fully switch over to XP (no more dual-boot), I plan on installing it on a new hard drive. Since I would be starting completely over with XP (on a new HD), it would make me contact MS again, wouldn't it? Would it just be easier to buy the new HD first, install XP as the main OS, and then switch the HD's back and forth manually when I want the other OS? (This would leave the other HD unplugged from the system, just to clarify.) I'm simply wanting to cut down on having to deal with MS.