Just to prove I'm not using RISC-OS 4 or something, here is the Operating System message. And it's RISC-OS 3.10 and not 3.11 as I had been saying!

It was a bit fiddly in places but I've ended up with an A5000 with two hard discs, a SCSI interface for even more hard disc capacity, Econet, and a colour video digitiser.