So I like having my case on top of my desk next to me which only allows the case to be 21in tall max. Right now I am using a Lian Li V750 which fits my needs quite well. However I would like to increase my watercooling options (can only fit a 120mm AIO atm) as well as move into a case with better cable management. Any recommendations on a case I should look into? I'd like something on the high end side of cases, but don't want to spend more than $300.