Hello all; ever since I decided to get a MBP, rather than upgrade my old MB I have struggled to pick which model I need (want lol). So that was 2-3 weeks ago, and immediately wanted the 2.3 Ghz, but then realized my money would be better spent elsewhere. So now it boils down to the 2.0GHz or the 2.2GHz model. And either way I want to install a SSD in the main bay and put the old HDD in the optibay. Unless I'm missing something the only differences are: 200 Mhz in the processors Faster or Bigger HDD Better GPU with 4x the memory Since the HDD won't be my main drive, is there really a difference between the 5400 and the 7200 RPM models? Lastly the things I want to do on my MBP: - Adobe Master Collection - (to be honest I don't know much about it, but a business friend is "investing" in me so eventually I will be using all/almost all of the programs, he says) - Mathematica, and also my field of studying in prime number theory; so some programs I write will involve ungodly large numbers, and numerous algorithms. But I'm not technology savvy enough to know how much power I need; and how much of a difference there is between the 2.0 and 2.2 - Will be doing programming in various languages, database creation and analysis - Logic Studio or something of that nature, it would be as a hobby - Starcraft ll - Parallels only for a few windows programs, but none of those are intensive programs What does everyone think?