The MB was the IWill KA266R which I found at www.adamant.com...paid $207. Built-in IDE RAID... I'm intending to do a RAID 0+1 system.
The memory was from AccessMicro.com, Zeus PC2100 DDR, 256Meg stick, $379. This was the first thing I bought, thinking it would be the memory that would be hard to get hold of. I may well end up kicking myself as the prices come down...especially if it is a month before I can get the friggin processor and have a working system, and the price of drops a lot in that time.