The Wavemaster is tough to beat in its price range, and if you are willing to mod it, it will do a admirable job at cooling quietly. The original Praetorian is identical to the Wavemaster inside and is similar outside, sans door. It also has a much better intake grille that allows for decent airflow without needing to bring out the dremel. The downside is there is no space for a 120mm fan- not much of an issue in the front, but a 120mm exhaust is clutch for cooling. You could easily fit 92mm fans in all of the 80mm spaces with a little cutting/creative mounting, though. If you like front doors (or don't mind them), the newer Praetorian (730) has cutouts for dual 80mm exhausts and a 120mm intake. Either way, the Wavemaster or the Praetorian models' quality is excellent through and through.
The Tsunami is a good case, but as mentioned above, I simply did not find its overall build quality to be on par with the Coolermasters in the same price range. It does cool decently, but at the expense of noise. Not a bad case but not worth $90-100, IMO. There are many Tsunami users who would disagree with me on the quality comment, but having owned one and compared it side-by-side to two Coolermasters, I stand by my opinion.