So I put together a system in the Cooler Master Elite 120. It's a sweet little rig, an i5-3570 sitting on an Asus P8Z77 Deluxe, 16GB and a Radeon 7770. I put in a 4-in-1 2.5" to 5.25" bay, which is where the boot drive (a spare X25) lives.
The thermals on that system aren't so great. The fan...