Right now I have a 12" 1GHz PowerBook with a Go5200 and 256MB of RAM. I just tried to play the Command & Conquer Generals Demo, and found it to be rather slow. It is playable at 1024x768 at low settings, but after coming from a decked out Athlon 64 system with a 9800 Pro, and a Gig or Corsair, it just seems a little slow. To slow for me. My question is if I add a 512MB stick or even a 1024 stick, will that make a huge difference in performance, or just a little difference? The computer can do most of what I want with 256MB, and I would hate to go out and purchase more memory only for a small performance upgrade in games. Any replys would be appreciated.