Hi, I know that this SHOULD be in the buying and advice section, but I get more help here. My cousin is looking at buying a used 15" MacBook Pro. I've checked it out and it is a great deal for being only $400. The problem is, it has the 8600m GT. He is not rich at all and this is the perfect deal for him, but I might tell him to hold off if the 8600m GT is gonna cause problems. Is it worth it? Thanks!