Hey all, I want to build a pretty big system. Using the HAF Stacker 935, and two 915s, I would like to have a mini atx standalone in the top 915r, a full comp underneath, and 10 hdds in the third 915r below the main, or spread between main and the 915 as needed. How many fan's should I have for good airflow? I'm going to get a 1600 w psu for the main, so amount isn't an issue. Also, would an i5 not overclocked, and GTX 760 4gb OC having good airflow negate the need for coolant? Thanks!