I am starting photography in college the fall of 2010, I know it's a year away, but I want to get some information ahead of time so I can start saving money for a macbook. I am taking photography (as I said above) and I know basically nothing about macbooks. I have used them many times before, and am comfortable with using them. I just need help deciding which one I should get. It's mandatory that I get one so that's why I'm starting this early in saving and researching them. I'd say I need a fairly big memory capacity as I take a lot of photos and would need the space to save them plus any of my other work. I also need it to be easily portable because I haven't decided if I'm staying in residence or not yet. Regardless, I'd need to transport it from either my residence or my house, to school and back. I am looking at a 15" and if need be I can get another computer screen to hook up to it while I'm at home. Any input would be appreciated!!