I agree with everyone who loves thier WinXP but I have two questions. If your CPU fan dies unexpetedly and your CPU fries can you replace it and boot WinXP back up? If you want to up grade your CPU will WinXP let you? I didn't like the ansers I've gotten on that so far. At work Win2KPro SP2 is rock solid and mine at home has been buggy(Maybe unlisted hardware incompatabilities)