same here, only its going towards 2 gpus instead of one lol
+1. Besides the fan behind the HDD's that's how my rig is setup.
My own rig follows the diagram you posted below. I set up my system to mostly use low rpm fans to run it quietly. When I sit up to type the front of my case is 20 inches (50cm) from my right rear.
The only time it gets noticeable is when the cpu really loads up. Then the PWM fans on my cpu heatsink spin up. At the same time my top intake spins up. It is a TY-140, which is a PWM fan. I link it and the two cpu fans on an Akasa pwm harness, with the controller plug plugged into the cpu header on the mb.
So I get a mostly very quiet rig, and when it loads up it is still a quiet rig.
You have fully answered to my concerns. I still can't believe how good this setup seems to be, according to the feedbacks in this thread you have brought a godsend.
I should have ordered a third TY-140, but at the beginning I was planning to use it as top intake too, with the rear exhaust fan a push-pull config wasn't necessary for my heatsink (moreover I have already an Akasa pwm splitter).
If it's still quiet as you said I'll overclock my 2500K for sure. Thank you again.