I had an i7 iMac, but sold it, but I loved it and needed the money at the time. I now have a new MBA and a 2.53 C2D MBP (which I am selling). Would like to buy a new desktop/work computer to help with my photography business, but not sure if a Mac Pro is for me. What is the benefits over an iMac i7? Is it more "future proof"? Obviously you might assume I'd have to buy an external display/keyboard/mouse, but I have all but the display. The external display would be nice when wanting to work directly off the MBA. If I buy this (2.66 Mac Pro):http://www.amazon.com/Apple-Mac-Pro-MB871LL-Desktop/dp/B000R84UQ0/ref=sr_1_1?s=electronics&ie=UTF8&qid=1288132830&sr=1-1 and a 27" display, will I be satisfied with performance for the next 3-4 years? I use Aperture 3, and CS5 for work. Thanks for your input.