Well, sitting on my desk, connected to a 20" DVI Aluminum Apply Display, is a G4 iMac 1.42 Ghz with 1 GB RAM and an 80GB drive. I got it for US $40 including shipping with an Apple ADC-DVI adapter.
Since MDDs are as scarce as Socialist Liberals are in Mississippi (lol--no offense intended if you are a socialist liberal in Mississippi) in this part of Washington State, this will have to do until I can get one. Plus it sidelines my 23" ADC Apple Display (AKA: "big beautiful monitor") since the Mini does not seem to be able to power that large of a display.
Now to do some reading on how the heck OS9 was put on this machine by others, 11 pages worth of reading. Sigh.