My personal opinion as far as OS's are concerned is that XP was NOT a big improvement. Especially not as big an improvement as OS X was. The only place I really see any significant difference at all is in appearance. I've been a Windows user most of my existence except for the occasional foray into my mother's PowerMac 9600, which I never liked because its keyboard had the little dots for your fingers in the wrong places (See, PC users care about seemingly insignificant things sometimes, too). It had OS 8.1 and I was not at all fond of it. The thing about Windows, though, is, ever since 95, it's been basically the same. They've added a few things here and there since 95, but the interface has been virtually completely identical the enter time. Now, given that I've now seen the error of my ways and gone Mac, what I WILL say is that Macs have always had Windows in terms of machine power, but my preference of OSes are as follows, on how their interface was mainly and secondarily how their registry was programmed, from worst to best: OS 8, Win 95/98/Me, Windows XP/OS 9 tied, Windows 2000 (more secure and much more well designed than XP), OS X.