My gf is going to buy a new iMac, I just purchased a new macbook pro. I noticed some new specs and options to choose from different than the laptop. VRAM on the base model is 128? Is there a noticeable difference with the 256 vram? she is going to do alott of photo work. she is curious to know if there is much of any difference between a 2.4ghz,a nd 2.66ghz? I played with both using logic and could see NO DIFFERENCE in speed. WIll the FSB new 1066 upgrade and the more cache increase the speed by itself vs just the processor?