This is the first Mac I will be buying, I've never been a huge fan of Apple I prefer my Pre to the Iphone but that's a whole other story. I'm heading off to college this fall and I want a lightweight portable laptop that will suit my needs. I really only use my laptop for internet, office, and basic video/music/picture editing. I don't drive, so I'll be carrying my laptop with me on the bus/train and just walking around the majority of the time. I was wondering which model would better suit my needs, the 2.53GHz 13 inch MBP and I add my own SSD drive or the refurb 2.13GHz Macbook Air? Or just get the baseline MBP 13 and put my own ram and SSD drive in?