Not your every day PC but I've had this thing for a while. I got it completely covered in grease and with a broken heatsink mounting. I had it working for a bit before it quit and afterwards shelved it.
Got it back out a couple days ago and it wouldn't stay on. Swapped ram, no go. Swapped processor and hey, it stayed on! Still no boot though. Ended up today deciding to wash the motherboard and dry it off (get rid of the frier grease) and now it works perfectly again.
Specs:
2.53 GHz Celeron D. It's 64 bit which might be the only redeeming part as it's fucking slow
2 gigs ram
80 gig 7.2k HDD. Interestingly it's server rated, has the "eServer" markings on it
1024x768 LCD with an ELO infrared touch in front. Along with that a thick plastic guard making sure you'll never break the panel. It's also water sealed, which is cool.
Windows XP Pro\XPe\XP for Point of Sale or something.