My uni are buying me a mac book air for £1150. Because it is a one year course I want to arrange for the thing asap, unless they say it is too late in the year and it is now not justified. I was gonna wait for the mbp update and add a few £100's and get one of them caz i wanna do video editing with progs like final cut pro, however I'm thinking about just getting the air now instead, not opening it and selling it on/sending it back once the mbp update finally comes. What sort of depreciation should I expect to see in the the thing over the next month? Thanking you for your advice in advance.