This is a stupid question, I'm sure. Setup: Mac Pro, Mac Mini, and two 5-bay enclosures in an old TV cabinet/armoire in my basement. The basement has heat and A/C, but can get a warmer/colder than the rest of the house depending on the season. Right now all the doors to the TV cabinet are open, but I want to install some fans in the cabinet and close the doors. Question: How should the airflow work in the cabinets? I mean, should the fans blow air into or out of the cabinet? Or should I have one fan blowing in and one blowing out? Thanks... P.S. - Looking at these... seem to be good value and not too unattractive.