I have the uMBP, see sig, and ive always planned on getting 4gb of crucial ram, but recently ive been looking at the new...er seagate 7200rpm 500gb HD. I would like some insight from some you pros which i would benefit from most. On my mac part i mostly do light stuff, surf web, dl and listen to music, play the ocasional mac game, and sims 3 when it oficially comes out soon on my windows 7 part i installed an x64 version cuz i planned on getting the 4gb remember, and all i do on there is gaming, crysis, biaHH, fallout 3... so would i benefit in gaming from the 4gb very much? like worth $60 worth? cuz i was thinking if its not, it would be more worth it for faster loading times for mac apps and games... no?