I am replacing my 3.5 year old Powerbook G4 1.33GHz with a new MBP 15" and need some help badly: I can't afford the 2.6 with 4gb but can afford one or the other. As a graphic designer and photographer who does a bit of video editing should I spend the money on the processor or the RAM and how much difference (and to what kind of task) will the 7200rpm hard drive make? Is it worth sacrificing 50GB of HDD for the extra rpm? How much difference will the extra power of the 2.6GHz make. I would expect to be using it for quite a few years to come. Any help would be very gratefully received.