I fancy one too, so if you find a couple do let me know. They aren't too much in demand, but when I looked before (haven't done so for ages) they went from uber cheap to pretty darned expensive for a refurb. If you can find one coming off site, the re-sell value is really low (just like snooker tables). You can get the odd one in good nick and someone simply wants to get rid. Otherwise ebay or the refurb companies - £1k to £2.5k I would imagine via these routes.