I'm going to university next year (computer science) and I play occasional games like Warcraft 3 and also going to play Starcraft 2 once it comes out. The 15 inch refurb Mac book pro have 2.4 Ghz processor, with dedicated video card while the 13inch mac book pro I'm buying will be the higher end one (2.53 ghz). Actually the 15 inch refurb mac book pro is slightly cheaper, so do you think I should go for the refurb? However I heard that new 15 inch macbook pro have better screen than the previous one, does that mean that 13 inch macbook pro also have better screen than the refurb I might buy?