the best for watercooling are either lian li or mountain mods.
http://www.mountainmods.com/computer...sgcs6c4130hkt7 are the MM cases, the absolute best in this situation.
http://www.performance-pcs.com/catal...b35845123f06d6 are lian li's that would work. there are a few others, but those are the best. i recommend mountain mods because it will be soooo much easier to install, etc and will look awesome buts its all a personal opinion.