I use the Coolermaster ATCS 840. This case benefits from having two PSU mounting positions and options for liquid cooling. The MB is mounted on a removable tray also. The case comes with three 230mm case fans. One 230 at the front draws air in while the two at the top push air out. You can add additional fans as well and I added Scythe low profile high speed fans to the rear of the HD cage area and one at the bottom of the case as well as one to the rear. My typical setup is to remove one of the upper fans to make room for the second PSU (I always use two).
When using water cooling with phase change I remove both of the upper fans and run the upper grill out of the case. This allows me plenty of room to run the plumping in for water cooling of the HDs and RAM. The phase change piping then comes through what would normally be the water cooling port. When doing it this way there is no need for airflow and most of the internal case area is filled with hydrophilic wicking foam. Not your typical setup but worth mentioning for anyone interested in super-clocking.