So I have finally saved money enough money to get a new computer, but I cannot decide between the portability of the MacBook Pro 17" i7 or the power of the iMac 27" i7. I know that with the iMac I may have some calibration issues, but it almost seems that for how powerful it is, I might want to get the iMac, plus it has a super large screen. Or will the MBP prove powerful enough and should I just get that, save a bit more money, and buy another display a little later down the line? I really wanted the MPB, but when I started looking at the benchmarks of the new iMacs, I couldn't help but second think my needs, even though benchmarks may not say a lot about real world use. I would also like to travel with my work, though I won't die if I can't, so it's hard to know what to do. Any other photographers work with either of them and can give me some advice? I plan on running Photoshop and Lightroom on them to edit photos, so how well they'll run is my main concern I guess. Either one would be a great upgrade from my current 1.83 Ghz Macbook, but I want to make the most of my money. If only I could buy both , thanks for the help.