Hi all, I have been having problems with my 15 inch MBP for a while and I have the option to replace my current laptop but I have to pay the difference. I'm thinking about getting the 17 inch 3.06, 500GB 7200, and Anti-glare but the difference is about $600. Do you think it's worth paying for this upgrade from my 15 inch 2.8, 320GB 7200, GLASSY? Thanks! Note: I prefer to keep my Expresscard slot and gain a matte screen; thus, my reason for wanting to upgrade to a 17 inch.