I'm planning to put a computer in my entertainment center. The system will be located in a space that measures about 45in x 22in x 20in (1143mm x 559mm x 508mm). The PC will sit next to an amp that already keeps the area pretty toasty. I would prefer to vent the area rather than having to keep a door open all of the time. I'm considering purchasing a 120mm 68.9cfm@30db computer fan w/fan guard to blow air out of the entertainment center into a space that is open to the attic. The fan w/guard is around $22. Does anyone have any suggestions or recommendations?