I got this for $65 shipped last summer, and I have just recently gotten a better one with dual CPUs, so I no longer need it.
It works well, and it's very fast compared to the 733 MHz QuickSilver it replaced as my main backup machine.
1 GB RAM (in the form of one 1 GB DIMM)
Single 1.25 GHz CPU
Original ATI Radeon 7000 graphics card
80 GB hard drive
Mac OS X 10.4.11 and Mac OS 9.2.2 (which can be booted natively on this machine).
Price is $140 shipped (or best offer). I accept PayPal, cash, or check.
Pictures are available upon request.