I was going to build a PC and my friend told me to look at a Mac. I am looking at the mac book pro with the NVIDIA GeForce 9400M + 9600M GT, 512 Mb and 3 GHz. I've read it can play current games OK but I don't won't to get a $2500 machine that won't play new games in a years time. Do y'all think it will hold up for a while? I also looked at the iMac, but don't like the 'one unit' feature because of its total size. The fact you can't modify an iMac either to keep it up to date is still making me hesitate on a Mac as well. Any words of advice?