Hey Guys, I've asked all over and have come up short and no solid decision has come out of what I've dug up.
i7-950 3.02GHz OC to 3.8GHz
Coolermaster Hyper 212 CPU Heatsink
Corsair XMS 3 1600Mhz 2GB x 3
EVGA x58 SLI3 MoBo
EVGA GTX 460 SSC 1GB
Corsair TX750 Watt PSU
Corsair Dominator 1600MHz 4GB x 3
New Graphics card
Don't want to spend over $400 on a card (Pref around $200 > 350).
GTX 570 with current GTX 460 as dedicated PhysX
GTX 570 selll current GTX 460 to roommate so he can SLI GTX 460
GTX 460 SLI with current GTX 460
I've seen that 460 SLI > single 570. No further upgraded possible.
Possible to sell 460 and get the 580. 580 for the price is not ergonomic. I will not get the 580.
Possible to get 460 SLI now and when 570 is $200 or less each go SLI with 2x 570.
You could also just forget about the RAM upgrade and put all your cash into a new GPU. Unless you're going some virtualization you don't need 12GB of RAM. To be completely frank anything over 8GB is total overkill.
Sell off the damn 460, then put your money into a 570 or two. Your best bet for finding some good deals is finding pre-owned or refurbished models. Newegg has a pretty big refurbished section, you should give it a look. Also check Ebay and Amazon and see what you can pick up on the cheap.
I'm running a GTX 480 SLI rig right now and couldn't be happier. If you can find these parts for cheap (which you most definitely can), go for it. Now that it's winter time these babies will keep you nice and warm. I can max every single game I throw at these. OC em a little with Afterburner too. Now that the GTX 5xx series is out all the fanboys are selling off their parts for a GTX 580 or two or maybe a 590. That means that you can find the 480s CHEAP. They have a terrible reputation for being loud and obnoxious, and I can assure you that if you only have one of them it gets pretty annoying. With two the load is evenly distributed so that you can't really hear them except for the most graphically intensive situations. The only thing I'd be mindful of is your PSU, these beefier GPUs can chew up a lot of power, especially in SLI. I wouldn't worry about it with a good 750W PSU like yours though, just bear in mind that it can come into play.
Read the toms hardware article on sli/crossfire microstuttering, and then realize that it's a bad idea and get a single 570. I can't believe that low/mid level sli is even an option people consider viable. It was really meant for the top of the line cards to be quite honest. And when it's not top of the line, you have the microstutter problem because your fps are going to be low enough to see it.
I was in the same boat until newegg had 480s for 200 each. The 460 ran bf3 very well and it should last until new cards come out. If you really wanted to upgrade right away I would get a 570/6970. Keep in mind that games are starting to push that 1gb vram limit.