And yet another iMac G4, this time the 20" model. Needs a new DVD drive as usual but is otherwise in very good nick, and came with speakers. It turns out that the speakers I got at a car boot a few weeks ago work well too. I've got the appropriate keyboard etc. and a 500gb drive, so this ought to be a simple upgrade. I'm surprised by how often these seem to turn up now that I'm noticing them, but for the moment at least they're profitable so I'm certainly not complaining.