Here is my current build and I use the house fan during benching runs to dump hot air straight out the window. I made a work log of my air cooling mod run and have lowered load by at least 10C:
Air Cooling Project: 101. Lowered CPU load by 9-10C .
I also recently won a new mobo and it should be here any day I'm really looking forward to it:
GA-EP45T-EXTREME, should give me even better load temps I believe.
Will post a further pic when I get the new mobo set up.