I'm willing to sell my spare PowerMac G5. Specification:

Dual Processor 2,3 GHz PowerPC G5 (so far the fastest MorphOS supported air cooled G5)
1,5 GB RAM (the maximum MorphOS can handle ATM)
250 GB SATA WDC Harddrive (tested, HDTune results and S.M.A.R.T. info are in the photo album linked below)
Genuine Apple Radeon 9600 Pro with 128 MB VRAM and dual DVI output
4xDL "Superdrive" optical drive
Additional PCI FireWire card (not really useable under MorphOS AFAIK, nevertheless I didn't pull it out)
The fans and the radiator are cleaned, but I did not take off the aluminium "G5" CPU module cover, as it's still has the original plastic "bolt" plugged in (you cannot really open the cover without destroying it, so I didn't want to do that as the machine is far from overheating).
Both MorphOS 3.9 (demo version) and OSX 10.4.11 are newly installed. The machine boots to MorphOS as default.
The case has some minor scuffs and scratches, but overally it looks good (as seen on the photos below).

Here is the gallery with detailed photos of the machine.

I'm asking 100 Euro plus shipping costs.

If you've got any questions feel free to contact me via PM.