Just got my new mac pro last week and loving it! I set it up to quad boot so I can play games in XP, test software with Vista 64, and also do some development and testing in Linux using Kubuntu 7.10. I hadn't heard of anyone else setting up their system for quad booting but it wasn't too hard to get working. If anyone else needs to do this, drop me a line and I'll explain the details of what I did! The new Mac Pro is just stupidly fast for compiles! Compiling my application which used to take anywhere from 60 minutes on my laptop to 10 minutes on my desktop (which was dual core 2GB AMD) has now gone to 2 minutes on the Mac Pro!