I've bided my time like the rest of you for the MBP update and now im trying to decide on the configuration of it. I'm going for the higher end 15inch model, but I can't decide whether to go for the 2.53 or 2.8 processor. At the HE store the price difference is £180...a fair chunk of money for a poor student like myself! I had a look for existing topics on this, but found none so I thought I'd start one up. So basically what sort of performance increase would you get with the better processor and is it worth the price bump? I'm a music tech student and I regularly render audiovisual material so processor performance is key for me, but if its only going to be a tiny bit quicker i'd rather save my money for sweets and toys.