> I'm well out of my depth in this, but how about the original Macintosh
> 7500/100?  It's listed as having a 601/100.  The update to the 7500,
> the 7600, came with a 604/120 in its base model.

I was (well, still am) under the impression that only the PCI Macs have
OpenFirmware.  Please, correct me if I'm wrong here.
--
ws@TooLs.DE     (Wolfgang Solfrank, TooLs GmbH) 	+49-228-985800