i have 1x120mm in front bottom sucking air in, over hds.. 1x80mm over cpu pushing on cpu, 1x80mm in psu sucking air up(i believe, antec 350)and then out with another 80mm, 1x120mm blowing air out the back, but the position of them is all bunched up, the exhaust 120 is close to the cpu fan and the antec psu fan, should i reverse airflow maybe on the 120mm fans?