I am trying to find a cheap or reasonably priced cd-rom tower. See picture for the idea. It doesnt have to have any drives or cabling, just a power supply and box/mounting hardware. I used to have one and am kicking myself for getting rid of it. Found some on e-bay and that may be the best bet.
I think your best bet is to stay with the ones on Ebay. If you try to buy one retail(or even wholesale) you are looking to spend 200-300 for just the enclosure.