I'm currently seeing around 65-70c on my top card and about 60-65c on the bottom in Dragon Age, both with the fans on Auto. Other games typically hover around those same temps from what I remember. I also play with VSync on so they don't create extra heat reproducing extra frames.
My case has like 8 fans providing airflow though. It's a Corsair 450D with the drive cage mounted under the 5.25 bays. I have 2 corsair 120MM from a busted H100 on the bottom pulling in air. 2 Corsair AF140s in the front pulling in air. 3 Corsair SP120 Quiets on the top. 2 pulling air in, 1 pushing out. And another SP120 Quiet pushing air out the rear. CPU Cooler is just a Coolermaster Hyper 212 Evo with 2 Corsair SP120 High performance fans. I went with all the fans in an effort to move more air but quieter. At the settings I have, all 8 are barely audible and acually will turn off if nothing is going on.
My case has like 8 fans providing airflow though. It's a Corsair 450D with the drive cage mounted under the 5.25 bays. I have 2 corsair 120MM from a busted H100 on the bottom pulling in air. 2 Corsair AF140s in the front pulling in air. 3 Corsair SP120 Quiets on the top. 2 pulling air in, 1 pushing out. And another SP120 Quiet pushing air out the rear. CPU Cooler is just a Coolermaster Hyper 212 Evo with 2 Corsair SP120 High performance fans. I went with all the fans in an effort to move more air but quieter. At the settings I have, all 8 are barely audible and acually will turn off if nothing is going on.