Just wondering which you guys use, a desktop or laptop. I'm eyeing an iMac with a nice big screen, but I hate being stuck at a desk for long periods of time to edit photos. I know this is largely personal preference, but I thought I'd just throw the question out there. I'll have to upgrade my system software on my MacBook Pro if I want to work with raw files from my new D7100. This might be an excuse to buy another new toy.