By my estimation, the case fits 7 fanshttp://www.coolermaster-usa.com/product.php?category_id=19&product_id=2919
Front: 200 mm fan x 1 (can be swap for 120 / 140 mm fan x 1)
Top: 200 mm fan x 1 (can be swap to 120 mm fan x 2 )
Rear: 120 mm fan x 1
Bottom: 120 / 140 mm fan x 1 (optional)
Side: 200 mm fan x 1 (optional) (can be swap for 120 mm fan x 2)
I'd keep what you have and just add the single optional 200m fan.
If you want to control the fans with the BIOS you will need fan headers....enthusiast boards have as many as 8....most boards 4.
Those fans are LOUD .... gonan sound like an airport at your desk