The CoolerMaster 690 and the Antec 900 that Kithzaru mentioned are both good cases. I know the Antec 900 is extremely popular with gamers. What I'm not sure about is water cooling.
Recently I stumbled across a new case from LanCool which is a subsidiary of Lian Li. From the photos and reviews it looks like it has potential. It comes with pre-drilled holes on the rear panel for watercooling:http://www.newegg.com/Product/Product.aspx?Item=N82E16811112239