I currently have a Macbook Pro (15 inch 2.2 GHz Core Duo, with only 2 GB 667 DDR2 Ram). I believe it is the Santa Rosa LED version. I am currently looking at the new Macbook Pro 15inch i5 (cheapest 15 inch version). Should I just upgrade my computer with ram, hd, etc? Is there a real performance gain in obtaining the new i5 over just updating the ram? I am a computer programmer, I manipulate and browse images moderately, and I lightly game. Thanks guys.