I apologise if this is the wrong place to post this...I currently have a 5 year old Powerbook G4 (512 RAM 667 MHz) which is pretty quickly going senile. Have decided to pick up a new MacBook pro. I can't decide which of the two 15 inch options to go for. I'm not bothered about the HD size, but was wondering how much real difference the 2.2 Ghz and 2.4 Ghz and also the 128 and 256 SDRAM would actually make? I will use it mainly for (admittedly non-professional!) graphics work and some audio stuff. I'd be really grateful if anyone could help and give any advice and also let me know if there are any other differences between the two that I should be aware of. Thanks very much in advance!