I am going to school to become a Audio Engineer/ Music. I will be doing a lot of work in Ableton and other DAWs. I was curious as to what you all would recommend. I don't see the point in getting the i7 when the performance is nearly the same. I am leaning towards the 15" 2.53Ghz with the high resolution screen, not matte. And the graphics, 256 vs 512? Is the difference noticeable for the things i will be doing? Thanks for all your help.