I am considering getting a Macbook Pro because of the ipod promotion for students. I am a light computer gamer and I was wondering what the performance of the Macbook Pro would be in games by Valve, specifically TF2 and CSS. I would like to have all the settings on high, at least 2xAA, motion blur, and Full HDR. I currently run all of this and 4xAA on my Vista desktop with a oc 8800gs, 2.6ghz oc e6400 C2D, and 2gb of ram at 1680x1050. I am worried that the 8600gt won't be able to keep up at native rez. If it can't play at a smooth framerate I will probably get a black macbook instead and keep my desktop. Also, to play the games, I will use boot camp to run either XP Pro, XP Pro 64-bit, or Vista Ultimate 64-bit. Which will be the best?