I mainly want to get a better card for Crysis 2, as I'm waiting for my i5 750 to ship so I can finish my 1156 build. It's tri CF/SLI capable, so I'm curious to see if jumping on this deal would be worth it.
So, would it? Would I see a noticeable performance increase in games like Crysis and such? Or would it only be like five or so frames better? Would it be smarter to just crossfire a second 5770?
If your budget is under 200, then the 6850 is a good deal .... if you can wait and muster a bit more cash, I would get a card with a little more future to it. You could consider CFing the 5770 and get a nice single card later on as well.