I built this machine to 5-box World of Warcraft.
The motherboard requires 8 slots in a case to do triple SLI, so I had to buy a bigger case in order to stay with the same motherboard and use all 3 video cards. See my other piece o' crap build for details on that build with only two of the three video cards utilized using a SilverStone FT05S.
This case is huge. It's way too big for what I want to use it for, but I had to settle on it for now. I removed all of the drive cages, as I'm only putting in one SSD drive which I mounted on the motherboard mounting backplate. I added a 200mm fan where the external drives bays used to be. The rivet holes lined up for two of the screws, but were off by 5mm or so for the other two, so I secured that side with a couple of zip ties. I've got the bottom, front 3 and top 3 fans oriented to pull air in. I have the rear fan set to exhaust air. And finally, I've placed the case front side down to achieve a 90 degree rotation so that the rear exhaust fan acts like a chimney fan. With this, I am able to get the cpu to idle at around 32C. The case is "tucked" away around the side of my desk, so it's not too noticeable, despite the monstrosity of its size.
As soon as I can find a smaller case that has 8 expansion slots, no external drive bays, 90 degree vertical motherboard orientation, a clean minimalist design and at a reasonable price, I will replace this case.
If only the FT05S had 8 slots, it would have been a fine choice.