Having just finished the project of migrating the wife and I over to daily use Macs/Gaming PCs, my original 2006 Mac Pro is now on the market, for those interested.
Ill be listing it on Craigslist in a few days when i have time to go over it and get it cleaned up, but thought id give everyone here a crack at it first.
2006 Mac Pro
2x Woodcrest Dual Core Xeons (2.66Ghz)
4GB of RAM
320GB Sata HD
Radeon 4870 (flashed PC part, but has worked flawlessly for years) 512MB
Replaced/upgraded Sony Dual Layer Superdrive (original drive crapped out, but i replaced it with the same sony units used in the following generation of Pro)
You'd have to pay for shipping; looking for around ~450$, open to some negotiation.