I'm looking to get a macbook and I just want to know if I should get a 2.0ghz core duo blackbook for around 600 (the guy will sell me it for that much, not just a random number, also has 2GB RAM, I'd upgrade HD), or go for closer to 1000 and buy a 2.16 ghz core 2 duo version? I want whichever one would benefit me in the long run and I don't completly know the difference between the two in terms of performance, as I've never owned a macbook, and don't have the money for a new one. I hope to use it for PS and some simple gaming. Thanks for any help I can get. BTW, what is the max ram 2.16 ghz version can support?