Once upon time there was a smorgasboard of the little Netvista cases selling on Ebay for $0.99 for car computer and other small form projects.
I picked one up (even though I didn't need it).
Items added:
90W Power Supply replaced with new 150W ACHME FlexATX Power Supply
Intel 810E2CB FlexATX Motherboard with I believe a 933 CPU
512MB PC100 (2*256) Memory
Construct I/O Plate for back panel
Modded Front Speaker Area for mini-fans in place of internal speaker
Adjusted pin header for front panel switch and LEDs to fit MB
I could part this thing out and sell off pieces on Ebay less case perhaps.
Attached is a copy of what the case looks like.
We ran it as a game and file server for a period of time.
I have removed the HD and DVD drive.
All offers considered...