I have a MBP 17", 2gb ram, 128mb X1600, 2.16ghz C2D. I was wondering how Orange Box will play on my computer. Half Life 2 and Episode 1 run smooth as butter, and I imagine Episode 2 will run fine, and probably Portal, but how about Team Fortress 2? Also, if anyone knows, how much HDD space does Orange Box take up if you don't choose to install HL2 and E1? Just the new content.