IMO you should change the fans direction. The ones on the bottom should be pulling air from the rad, not pushing it. As of now you have 5 fans sucking air outside the case and only 3 intakes (provided you use both side fans) which is not "enough". If you change the ones in the botton you will have 3 intakes (botton rad + front..and up to 2 more with the side ones) and tres exhaust ones, the upper rad and the back fan.