I am on a Haf X case, the temps are at low 20's... and no water cooling here.. just plain old air cooling... with a v8 coolermaster, 2*200mm on top, 1 x140mm on the rear, 1 x 200mm on the side intake, 1*80mm exhaust, 1*80mm internal circulation, 2 * 40 mm front bay intake, 1 x 230mm front intake... Haf x with enough fans are your best choice...

rgds,

j.j