My last two have gone under the floor, so not much need for a case, altho my current one is a little fancier than the previous:
v3 with an epia and a 1U psu:
v4 with a hp ePC mainboard with onboard psu:
The allthread has since been cut down (as its been in my car for two weeks now) and a cat5 jack for the control box was added to replace the buttons hanging out the back. It's in basically the same spot as v3.