count since i won't be using it for more than a couple days, but have to post because it's still awesome.
have no other empty cases around so i had to move my current pc into this to work on my normal case. it's my absolutely ancient server case, made sometime in early 96 or before, supports both AT and ATX. not the PSU it came with either, but the original was some generic 235W PSU... that one has earned itself a break anyways, having rendered somewhere over 60000 hours of service.
no exhaust aside from the 80mm PSU fan, i wedged a 120mm Evercool in the front with masking tape, left it at 12V since i wasn't sure how ventilation would be (check out the little holes all down the back, and the generous 60mm? mount at the back). left the entire bezel off for the same reason, i bet there's more air drifting out that gaping front hole than there is coming from the backs of most of your PCs right now.
that last pic doesn't fully capture the finger-slashing glory of the 30 second hack job i did on the meager hole-punched fan + speaker grill either, the flash caught one nice point right above the fan though.