Lost Job - graphic card dilemma

[blakmumba]

Hi Everyone, was previously running 2x Gigabyte Ati HD4870x2 (crossfire X dx10.1) graphic cards and then got a single Nvidia GTX 480 (dx11) cheap of my uncle's bro. Like usual, life sucks as got made redundant so need to make money and considering selling either the pair of ati cards or the single GTX 480. NOW thats the problem, which card do you think I should keep?
I play mostly Black Ops online, L4D2, Crysis 2 etc (FPS games).

All advice would be much appreciated.

Thanx Peeps

System Spec

Phenom II x4 965be @ 4.0ghz 1.409V,
Asus Crosshair IV Formula,
Thermalright Silver Arrow cpu cooler,
GTX 480,
4x 2gb G.Skill Ripjaws 1600mhz memory @ 8.8.8.24 - 1.65V,
CPU/NB @ 1.25V,
Lian Li PC-P80R case.

 

[blakmumba]

Sorry posted in the wrong thread, have now corrected but unable to delete this thread so please accept my apology.

 

[megamanx00]

I assume you'd get more for the 4870s, but I'd say whatever you'd get more for . Two 4870X2s should be faster in games the drivers have been optimized for, but with a single GTX 480 you won't have to worry about that.