Good to know. I wasn't aware that would be the important thing, but it makes sense. I wouldn't mind replacing any hardware on my PC EXCEPT for the hard drives. That would stress me out.

On my case, the "important" drives are mounted to the bottom front of the case - right near the two 80mm fans that pull in the cold air. The warm air expells out the top in the rear (just below the power supply).

Not bad for a $50 case that had a 450watt PS!