number 2. looks like the clear winner.
and the ram will help future proofing it a little more.
cpu boost will be better than the double gpu, because
sli scaling isn't as great as we all like it to be,
and that's a realllly nice cpu, 4 cores. helps to future proof.
OH WAIT! I didn't notice the first one has DUAL 260M in SLI. Honestly that one would have MORE graphic power than the 2nd, just less CPU power. But for gaming the dual video would run faster. Man that this would be a toaster.
Its not an upgrade its a custom build. I have the choice of the intel i7 1.6GHz or the 1.73GHz (that i can afford anyways). I am just not sure of the 3 which would be the best boost in gaming performance (ram, processor, graphics card). I know of the 3 ram would be easiest thing to upgrade myself but for the money I am looking at spending I really dont want to think of upgrading for a long time. So I can add a third option which is same as second except 6gb of same type of ram and the upgraded processor. But when gaming how much does the processor come into the equation? doesnt the graphic processor do most of the work?
For that power and resolution I would take build one because of the 17" screen. Every thing would look awfully small on a 15" with 1920 x 1200. I am writing this on a 15.4" laptop with 1680 x 1050 and I have always regretted not getting it with 1440 x 900 which was my other option.