Gigabyte GA-6VEML -- http://www.giga-byte.com/products/products.htm. It is Socket 370 with built in agp graphics (no agp slot), sound, ethernet jack, 1 isa slot, 3 pci (one is shared with the isa slot), and 1 amr slot.
Micro-ATX, 1 gig of PC133 RAM, etc.
It ain't pretty, doesn't have a whole lot of good features, won't accept tip-top of the line components. Good cheap components, so it won't break the bank. Plus, you can overclock it.