Here's a case I designed at my tech school last year. I'm not entirely sure whether we'll actually get around to building it ever since a close family friend died of brain cancer today.
Dim: (HxWxD) 22"x11"x24" w/o front shield and feet
Wood: Oak (solid and ply) thickness .25"-.5"
Fans: 6x120mm (3 filtered intake, 3 exhaust)
The 1/2" foam provides a cushion between the vibrating fan and the wood. Wood, especially oak, should work well with this, because of the higher mass of the material. the gap also significantly decreases the air resistance of the filters.v
The filters are removable for easy cleaning. I've already produced the frames in plastic. the filters right up against the fans destroyed the airflow, so the .75"-1" gap would reduce the turbulence resulting in faster and quieter operation. All fans combined full speed produced about the sound of my geforce 9800GTX+@ 60%. I also have a silencer 750W PSU and 120mm zalman CNPS-7700-CU, so al low speed the computer should be virtually silent.
Wiring to the HDD, DVD, fans, lights, and pretty much anything else, will be rerouted to the backside of the case for optimal airflow and low clutter.vv
If you're wondering, the HDD and DVD will be suspended in Bungee or something similar. slots will be added to the side posts. Also note the lack of DVD hole. I use DVDs very rarely, so I figured I could quiet it up there, too, dispite having to open the case to insert a DVD. Fan intake/exhaust controls might go there, as well as USB and Headphones.
hopefully how it would look fully lit. vv
so whaddya think?