Gaming PC, Needs Gaming GPU

[dr4g0nf1y]

phenom 955 3.21GHz
Crosshair Formula
4GB OCZ DDR3 1600MHz

I'm currently running 2 ATI 4850's 1GB's in crossfire and using CCC to adjust the speed but I'm still not happy. Yesterday I lost video twice in game.

I don't mind Nvidea or ATI and if it's an x2 based card with 2048mb I don't mind spending £350 on the card.

Is it better to go for one card or two and what cards?

Cheers

 

[dr4g0nf1y]

My PSU is up for it. It's got the pins waiting lol

I have 4x 6pin connectors and 2 of them have the extra 2 pins.

I don't know much about Nvidea at the moment. My last card was a 6600GT and obviously that's like 3-4 years ago, so I'll have to compare.

I don't want to get a 4870 because of the new cards that are coming out soon.

I hate waiting