I've got one that my sister is returning in a few weeks, after she copies her data off. She's been borrowing till she bought a new PC (took her two years!!!)
Its called a Book PC. bki810

Pretty small case. Tiny motherboard, about the size of an ITX but is an older propietary format.
The following is onboard: video, sound, network, modem.
I think their is either one or two PCI slots but the case limits them to half height cards.
Celeron 366mhz is in there now (I have a 533mhz laying in a parts drawer).
I think she's returning the 14/15" monitor too, if anyone has a need for it.
The power supply is tiny too. Good thing you don't need the hard drive cause its only 200MB (I was playing a joke on her, she never caught on). I think the ram is 64MB.
Its in Michigan if you want to pick it up, just make a fair offer.