So I'm going to be adding some fans into my rig and I need a bit of help of where I should put them. First of all I think I might put my 2 of my AF120 quiet edition fans for exhaust, one at the very back and one on the top left. This means I'm going to have negative air flow in my pc. I am also thinking of adding a SP fan at the front under my main intake fan where it'll be behind a hard drive cage. Any thoughts? also I don't have an aftermarket CPU Cooler, I am currently using the stock as I'm not overclocking. I don't know what im gonna be going with because some factors like noise and what not. Any suggestions would be awesome