Link
I know the Xeon Chip can be found cheaper used, but i think motherboards for the CPU are pretty scarce to find.
The reason I posted this link, is perhaps someone is trying to build a cheap dual cpu system, and use an M/B that was bought cheap on Ebay, or like me, upgrade a work server from dual PII-233's to Dual PII-450's.
I was looking on ebay for used PII-450's, and found them to be expensive, plus no real gurantee that they work.
Jester6