I'm just about to setup my new system: Conroe 6600, 2GB, 975 mobo, x1950xtx, 2x 320sata. I will be using it for gaming, video capture and editing, some .net programming and I would like to be able to do some streaming a/v to the home entertainment system. Would you install XP, XP64 or Media Center? Just curious what you think.