I've heard that there have been some differences between the older and newer Macbook screens - I'm thinking about buying a reburb unibody macbook and want to know how significant the difference is. If it's big enough I'll use my student discount to get a new mac with an iPod and then sell the iPod for the price difference, but that is a lot more work and initial money spent vs just getting a refurb. Does anyone have any experience with both?