Overclocking as much as I do, watercooling was a great thing for me. My PC is in an Antec DarkFleet and is silent with all fans on low speed. I watercooled for the low noise. The thing still heats up my room just as badly but at least I don't have to listen to it while it does it. Not to mention that watercooling just looks cool (side benefit ) The side effect is cost. It is definitely expensive to run a liquid setup I don't deny that at all. If you can get the temps under control using fans without it being too noisy I would go that route honestly.
did you sort this? I see your case has air filters attached to the bottom fans. When was the last time they were taken off and cleaned? could they be blocked up? I know my brothers case has filters on the front of it and they looked like they had been used on a vacuum cleaner. lol Also, have you thought about a Corsair H50 water cooler? or perhaps the model up with the two 'push-pull' fans ? Its a simple set up, and works a treat. my idle temps are less than 30" Deg C on the cpu at the moment.
