I just took the MacBook Pro plunge. I must say it was very sureal to go through the XP install on Apple hardware. I got all my VPCs running under XP and VS.NET 2005. Looks like it will make a pretty sweet development machine. Since I love to play with technology, I'm looking forward to having access to both OS X and Windows. Now I can do my Ruby on Rails experiments properly. :)
I had similar troubles when intalling XP as Jeff did. Doing a repair on XP and re-installing the drivers seems to have cured all.