Actually getting an HD7850 isn't that bad of a choice as well. Your CPU will bottleneck it in most games but you'll still see significant improvement. Overclocking your CPU will also help reduce bottleneck.
That's money spent that op won't see on screen due to bottlenecking. A 7770 would be more than enough with that CPU. The only way I would recommend going any higher would be if op planned to upgrade their CPU at a later date.
i would overclock that cpu and get the hd 7850
How much of an overclock do you expect from that? its already at 3.7 ghz. Time to upgrade the CPU if you want anything resembling smooth at higher settings.
Thanks for the info everyone, im going to buy a 7770 today.
I would have saved for a month or 2 more to buy these
your 7850 and a Phenom II 965. Would give a better, more well rounded system.