No problem
Well, I actually didn't have a problem with any version of XP, even before I had installed XP2. The first releases of OSX were pretty hellish for me. Panther was fine; then I installed Tiger and I was back in beta land, which is when I decided to move the business-related stuff back to XP and just do the fun stuff on OSX. Fortunately Apple released a fix a few weeks after they released Tiger.
Well, I don't think they've really done that much. They've mashed a few extra look and feels into the UI, added dashboard (and I'm not even sure they invented that), Automator (wich I really should try out). Apart from that, the OS is pretty much the same as it was when it was released (though a lot more stable obviously).
It's an excellent piece of work, but it certainly should be cheaper because when you get right down to it, they didn't actually have to write it from scratch.
Er ... OSX does have one, but it appear to be
black ....