Don't know if this helps you or not but im running a EVGA 460 GTX SE @ 60-70 degrees under 90%+ load, setting are very similar to yours, but I do have DoF off. Also have a Coolmaster HAF you mentioned, you wanted.

Now my CPU on the other hand is different. Under 60%+ load my cpu temp reaches high 80's to sometimes low 90's. Freaks me out. CPU is i5 2500k. Redid my thermal paste on stock heatsink, thinking about aftermarket heat sink now...

Does anyone know how much difference Windowed to Full screen mode helps?