After alot of research I came to the conclusion the EVGA gtx 285 was the best of the 285 series, but if I was you since you have 3 monitors is run 2 off 1 GTX 285 and the 3rd off one of your old cards, since the GTX 285's are still floating around $350 sometimes $300 on a good day at new egg.



Edit- Right now New Egg has the EVGA GTX 285 SC Edition on sale for $295, but its an "in cart" special so you wont see the discount until you put it in your cart.