If you need a case with space consider this member of the Storm family, the CM Storm Stryker XL-ATX case.  At 250x605x578mm (9.8×23.8×22.8") it will not fit under every desk but will hold a significant amount of hardware, you can fit up to 13 drives depending on the configuration of the HDD cages and it sports 9 add-in card slots on the back.  With fans on both the top and the bottom of the case, you could easily attach a radiator to the case or make do with great airflow if you do not desire to watercool.  Modders Inc was not only impressed by the brilliant white finish, they could not find a single bad thing to say about this case.

"The modular hard drive case setup was a great bonus to find when diving further into the case. These features, plus the fan controller, cable grip holder, and all the included fans that provide a constant flow of cooling air through the case really makes the CM Storm Stryker a well desired case."

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CASES & COOLING