Hi guys. I'm looking to upgrade my system a little bit. It runs fairly well now, but I would like to bump it up to the next level. My main specs now are: 2 gigs of ram XFX 8600gt 512mb 5300+ Windows XP Ok. Now for my questions. I have a few different possibilities that I am thinking of doing, which I will lay out here. -I will def. be upgrading to 4g ram or 6g (depending on vista or not) -I want to up my video card. Should I get another 8600gt and SLI or buy a 9600gt. I'd like to save money from a 9800gt, unless the 9600gt isn't a good choice. So basically here are my proposed configs. -SLI 2 8600gt's w/ 4 gigs in XP -SLI 2 8600gt's w/ 6 gigs in Vista -1 9600gt (9800?) w/ 4 gigs in XP -1 9600gt (9800?) w/ 6 gigs in Vista Out of those 4, which do you think will give me the best performing gaming machine? Thanks a bunch, I appreciate it.