I'll tell you what I think of the Coolermaster Wavemaster.
I bought one in September '03, when it was featured in Maximum PC's "Dream Machine of the Year".
By late spring, early summer 2004, it's ratings -- I believe it was in Maximum PC -- dropped from first place to about 11th.
I decided to get rid of it this summer because mid-tower cases have a higher ambient-temperature cooling profile and fewer places to put large, slow, high-throughput and low-noise fans.
But there are plenty of good midtower cases around. The problem with the CM Wavemaster is the stylish lower-front-panel. The existing holes are too small to facilitate a draw of fresh air by the two 80mm fans perched in front of the 3.5"-wide hard-disk cage. The shape of the lower-front-panel makes it difficult -- near impossible -- to modify in order to install a 120mm fan -- of any sort. And finally, the drive cage and two stock 80mm fans sit about an inch behind the front-panel inner surface. So instead of drawing in fresh, cool air from the front, the fans tend to recycle air that is already in the case.
You could make several possible mods to the case without altering the lower-front-panel -- for instance, you could add a blow-hole over the processor fan, and install a duct so that all air blown on the CPU comes directly from outside the case.
The other thing I don't like about the Wavemaster is the limited area in the case rear for installation of a fan that is larger than 80mm.
If I were to buy a case from CoolerMaster, I would choose the CM-Stacker.
I've made a deal to sell the CM Wavemaster to my dentist, who wants to build a Pentium 4 for his office. I understand where he's coming from -- he'll get a section 179b tax deduction for it, and the case adds prestige to the professional surroundings. He's going to use a 2.4C processor, without overclocking. For that, my guess is that at an air-conditioned 73F room temperature, his system should have an idle CPU temperature value of between 83F and 89F, so he'll be fine. And I was forthright in telling him why I don't like the case.