Built my first cpu, ready to order graphics card

[aces0vr8s]

Built my first cpu, ready to order my graphics card I want a good card that will run equal with my system, i dont wanna get a op card or a under powered card, i5 2500k 8gb ram asrock p67 extreme4 gen3 mb will be used for gaming only, currently on a crap monitor but will end up with a 1920x1080 or 1920x1200 most likely, a 24 or 27inch currently play wow, but like i said I just want a card that will fit my system well, not really a budget but would like to keep it reasonable. (please no 500$ cards) Im not set on invidia or amd, but ive always had nvidia card in the past

 

[AdrianPerry]

Anything out of:
ATI 6950
Nvidia 560Ti
Nvidia 570
ATI 6970
Nvidia 580

6950 is about the same as a 560, 6970 is about the same as 570.