Get a liquid cooler for your CPU. I would go for the Corsair H80.
www.corsair.com Doing that,gives you many more options for cooling the rest of your case,and moving air over your video cards. I suggest leaving your 200mm intake fan where it is,have the H80 installed to bring cool air IN from outside the case,and install fans in all open areas to exhaust excess heat from the case. That's the H80 and the 200mm drawing air IN, and all other fans blowing air OUT. You will be pleasantly surprized at how much cooler everything will be.