hi guys, these are the games i plan on playing when i purchase my new macbook i5 15inch. i know the processor difference between the i5 and i7 is barely noticeable especially for someone like me who doesnt do all that high-end rendering stuff. the only thing thats freaking me out is the difference in quality between these games with the nvidia 330m 256 mb vs 512 mb. some have said it'll make no difference as most games these days just use the speed of the card and not the space, and that the 330m is not even fast enough to take advantage of the 512mb....what would the quality difference be between the two for these games? i plan on getting the high-res screen, does that change anything? the graphics card is my biggest dilemma with this decision of the i5 vs i7, i dont care about anything else except that, HELP PLZ!!! is it worth it?!?!?!