I think its time I upgrade my pc because alot of the games coming out now I have to play at medium or even low settings somtimes. My computers specs are 2 GeForce GTX 480 graphics cards running in SLI, Intel(R) Core(TM) i7 CPU 950 @ 3.07 GHz, and 12 GB of RAM. I'm not the most tech savvy so some of these questions might sound silly lol. What would you recommend with about a 400 dollar budget? Would it be better to get one more expensive card or two cheaper ones with SLI? If I just got one better card would I still be able to use a 480 with it in SLI mode as a dedicated physx card or something? Basically I'm looking to play games on High settings for a few years before I have to upgrade again. Thanks in advance for any advice you can give.