i'm using all fractal fans, 2 on top exhausting (140mm), aswell as a 120 on the back, then 2 120's in the front bringing air in with another 120 below.
I'm getting around 60-65ºC when stressing (i7 920 at 3.8ghz) and around 35-40ºC Idle. (Also cooler is a Noctua NH-D14).
One thing i notice...