I bought a MacBook in NY when I was over there - and I guarantee that it's the best decision I've ever made.
No problems, a hell of a lot faster than any Windows based machine I've been on, plus with the added bonus that there is only a handful of viruses written for macs in comparison to the thousands for pc's.
Definitely worth the money, I'll never have a PC again. Plus, if you get a new style macbook, you get the added bonus of multitouch gestures, which make life a hell of a lot easier! :)
(And you can get all Microsoft software for the Mac too)