Just took the RAM out to reseat it. While it was out I tried booting up again, same result, i.e. none to speak of. So, I tried it with half the ram, no change. Odd thing, as an aside, it has eight RAM modules, but from memory the system indicated there was 12 meg on board. I can't do the maths on that one yet.

At the moment it looks like I've bought some RAM chips, an 80 meg hard drive with some useful looking software on it, a floppy disc of uncertain functionality, and a big cardboard box. Bummer!