i used to have a phenom ii x4 965. great little cpu for the price. i was playing bf3, sc2, d3, and more without a problem. with your 660ti you should be just fine
No doubt, I currently have a 960t at 3.9Ghz, and For what I paid, along with AM3+ socket, I love my build. I am waiting until Steamy to upgrade, but right now I see no reason to.