I am replacing my tired old imac G5. I am not a gamer but will be running Aperture allot. I want a system for speed at this, as well as longevity. I was thinking of the imac 2.93 and upgrading to the ATI 2450 GPU. Any thoughts. My other thought was a 15" Mac book pro with upgraded graphics and adding the 24"led display. I could go refurb with these to keep costs down a little. I dont need to travel but the laptop would be nice for flexibility around the house. The led/mbp would be nice but it would be around $300 more for less HD space and a slower GPU and I wouldn't get the free ipod touch I can get on the student deal now. any and all input is appreciated.