Hey, so i'm going to be a freshman in college and have decided to buy a 13" Macbook Pro laptop. I'd be getting the cheapest one ($1199) and using it for the internet, writing papers, storing music and photos, and whatever else I may become interested in while i'm in college. My question is, when ordering, for $40 I can bump the hard drive up from 250GB to 320GB...is it worth it for what i'd be using the computer for?