I just got Parallels running on my MBP. Very nice. Their Windows installation helper is worth the cost by itself. All you have to do to get Windows XP running is insert the CD and enter the activation key in the window that pops up. Then walk away... Parallels does everything else for you (including all the restarts of the virtual machine). I was blown away. It's way easier to install Windows in Parallels than it is on a PC. So if you're thinking about it, make the jump.