I've decided to do a little gaming on my MBP before it starts to become too slow to run anything somewhat recent... but I only have 30GB free on my internal hard drive. what is the minimum partition size I'll need to run Windows XP and a game that, let's say, requires 4GB of hard drive space? does the partition need extra "head-room" above and beyond xp + the game? I have a large external hard drive, for what it's worth... is it possible to install xp on this using bootcamp? I'd like to avoid moving my stuff (pics, music, etc) off my internal. any suggestions?