Hi, I am finally converting to a mac and have decided to go with the new MBP's. However, I am slightly unsure as to which 15" i should go for. Will the extra 256mb VRAM make much difference on a GeForce 8 graphics card? The 2.4Ghz model seems a lot better value, however, the double L2 Cache of the 2.5Ghz makes me think that this might be the better option Also, I was wondering if the 7200RPM hard drive uses much more power than the 5400RPM drive? If not then I think I will get this config if it is a lot faster (can someone help me in regards to difference I would notice between the two drives). The space is not much of an issue with me as I have an External drive already which I make use of. Thanks!