Icronic has posted part 2 of their Airflow & Cooling Tweak guide
A good addition to any case is adding a fan at the front bottom of the case to pull air from the outside to the inside of the case. It has been often quoted that you should have CFM (Cubic Feet Per Minute) equal for intake and exhuast. I prefer to have the exhaust as the greater. Not much greater but greater nonetheless. This way airflow direction is better maintained. Like a river of water I don't want water pushing anywhere and thus changing direction. Pictured below is the route for a front intake fan.Read more
