Hi all,
I think I have a good gaming pc, but the probleme is which GTX580 video card should I buy?

-Asus GeForce GTX 580 1536MB DirectCU II
-EVGA 015-P3-1580-AR GeForce GTX 580
-Gainward GeForceŽ GTX 580 1536MB GDDR5 duo fan.
-Palit GTX 580 1536MB
Or maybe other good GTX580 video cards

Who can help me??