I have to recommend my Silverstone Fortress 02 case, it is spectactularly quiet and solidly built:

http://www.silverstonetek.com/produc...=FT02&area=usa

However, if you must have a full watercooling rig then apparently the Corsair 700D/800D cases are supposed to be more appropriate.

I use a Corasir H50 all-in-one water CPU cooler with my FT02 and it works fine, but that is a different beast.