Ok, i've got three case fans in this case with the antec 350w psu. Two, are in the bottom section of the available three slots in the front of the case for intake. I have one fan in the lower rear section for exhaust. My powersupply as most of you know has a fan on the bottom for intake and an exhaust fan blowing out. My heatsink fan is a vantec aeroflow. Now, with my pc running at 11.5x202mhz @1.625vcore my cpu runs around 44 celcius idle and around 54 celcius at full load. My case, on average, runs about 3-4 celcius more than my cpu. I'm positive that I will put a fan in the last slot in the front of the case which sits directly in front of the hard drive bay, but i'm not sure if it's a good idea to put a second case fan in the rear for exhaust. I'm afraid I might end up "taking" air away from my HSF and end up raising my temps instead of lowering them. Anyone ever had this happen to them?