13" MacBook Pro 2.3Ghz i5 VS 15" MacBook Pro 2.0Ghz i7?

It really comes down to what you want to use this computer for. The i7 is superior for most tasks, particuarly graphically intensive tasks. For general purpose computing however, and a little final cut pro and such stuff here and there, I'd definitely go with the 13'' setup that you have there. That sounds awesome, especially that drive. Good hunting.