I am getting XP sp2 for bootcamp to play games soon. But I also want to run windows along side my mac OS for little things, and leave bootcamp for the big stuff (gaming). Now I have Vmware Fusion and a windows sp1. Can I easily upgrade that to sp2. I want to play a demo for a game called Enemy Territory: Quake Wars, I don't care about graphics here as I just want to get a feel for the game, but would it play smoothly? under low graphics that is.