I would HIGHLY suggest a fan controller if you have lots of fans. When I did mine, I picked up a pack of these
. It also had enough "extra" switches that I wired my standard (molex connector) 80mm fans to the switch so I've got 5v and 12v power ("low" and "hi") and I also wire my front case LEDs so that they can be on "low" (5v) and "high" (12v). Then I used the actual variable knobs to run the 2 120mm's on my Xiggy, as well as the fan for my GPU and the 120mm at the front of my case.
Please note there are WAY better (faster..high CFM) fans out there, but they cost more. These were fine for what I needed them for.
Intel Core i7-2600K @ 3.4GHz || GIGABYTE GA-Z68X-UD3P-B3 || Corsair Vengeance 16GB DDR3-1600 || EVGA GeForce GTX 480 || Samsung EVO 256GB SSD
my feet get cold and that gives me diarrhea sometimes - Smart_Guy