I just picked up a Power Mac G4 (Digital Audio) with dual 1.8Ghz processor, 1.5GB RAM, ATI Radeon 9800 and DVDRW for $100.00 flat, local pickup. This is almost perfect for today's supported hardware, with the exception of the Radeon 9800 not having 3D support yet.
I wonder how long until the 9800 is supported for 3D? Time for setup, great stuff! Might be registering MOS today, which I did not do with the eMac...