i don't think a macbook would be able to run cod4 cuz of the graphic card (gma x3100)
i suggest if u wanna play some intense graphic games; go for the mbp
u can try playing but its gonna lag like hell
There's no way that is going to work with a desirable effect. The MacBook just won't handle it. I second the MBP for that, it can consistently play Crysis.