I have an AMD K6 (1) 300 MHz (Generic HSF) with a Giga-Byte motherboard. I don't remember the motherboard model #, but it supports both PC66 SDRAM and EDO ram (simultaneously if configured right).

Board Features
2 SDRAM slots / 2 EDO slots
UDMA33
AGP
3 or 4 PCI slots
3 ISA slots

I don't have the system with me here at school, but my dad can remind me of the specs (as he has it back in Dallas).

I also have the original CTX case and power supply (250W I believe). I don't think that I have any RAM laying around, but if the price is right, I'll pull some out of my computer . Let me know if you are interested, and we can talk price.