First, please read what I have to say, I'm not here to say "Windows XP rulez!".
I'm running XP pro on a 1 GHz, 512 MB RAM, 40 gig HD, nVidia geForce 2 MX, Sound Blaster Live. And so far things have been great (all problems I've had delt with the motherboard, not Windows). While I had to fix some of the new annoying ass features in XP: Win Messenger (A bitch) .Net passport (.net can kiss my ass) Error Reporting (It should work in the first place) and UPnP (Yea, enable something we don't even have, great idea MS), I can't complain. However, I am SICK and DISGUESTED at MS with their practices more so than their software.
So I have to ask you, if MS wasn't such a bitch, would you use their software then? Not saying you'd loose what you're using now.