I'm thinking of buying a Macbook Pro 15", though I can't decide between the 2.66Ghz and 2.8Ghz model. There seems to be little difference, I'm not concerned with the difference in HD size, mainly the speed etc. Basically I'm going to be using this for lots of Video editing in Final Cut Pro, Flash, Motion and After Effects as well as some Photoshop. I'd like to also run ProTools, which usually is quite demanding, but I'm not sure how much the difference is between models. Basically the 2.8 Ghz model has improved upon: 0.14 Ghz 256 VRAM 3MB L2 Cache It seems that for gaming the 2.8 Ghz model will be better, but I'm not going to be using this for gaming, so which one should I buy? Which one influences the speed and efficiency the most, Cache, VRAM, or Ghz, and is it actually noticable? I've read a lot of threads saying that there is about a 5% difference, though others show that at the higher end the 2.66 is not comparable to the 2.8 Ghz.