I've been meaning to post this picture for a while now. Here is clamps, named after a Futurama character you might remember. It doesn't really work, though it's getting better. Here's a rundown of the stuff in it:
Motherboard - Old KT7A-RAID, which I got rid of because it was quite broken. This is the weakest link on the system, often refusing to boot, constantly crashing.
CPU - AMD T-bird 1.33GHz, ditched when I upgraded my CPU for DOOM 3. Still in good working order.
HSF - Stock AMD heatsink and fan, from a retail AMD 1900+ MP package. Thermal pad scraped off, Arctic Silver applied.
Memory - 512MB PC133 (CAS2) SDRAM. Two sticks of 256 that are useless on newer motherboards, but high quality memory in its day. This went with the KT7A-RAID when I got rid of it.
Disk - 8GB Maxtor, pulled from bender, the old tower computer that used to be my firewall at home. It works, but it's loud.
Video - Matrox G450. This is my emergency backup video card. It's been in just about everything.
Network - Some ne2000 PCI or something. Cheap, small, not really visible in the picture. I believe this also came out of bender.
Sound - Hercules Gamesound Muse XL. Pulled this from my little brother's old computer. It has linux support, whatever.
Power Supply - 250W cheapo unit, pulled from one of my NEC PowerMate systems. Probably not really enough.
ATX Case - None. It's sitting on the antistatic bubble wrap that I had the motherboard stored in.
Power Switch - That would be an internal analog sound cable attached to an old toggle switch. Toggle on and off to send the power button press and depress. Actually pretty useful, since holding the button in for those oh-so-common ATX resets is now done only with toggling :)
I'm not sure if I'll ever get this thing to be 100% stable without getting a new motherboard, and maybe power supply. But for short 15-20 minute intervals, it's pretty nice.