[simonc]

There is a set of five new Goodyear Eagle 255 50ZR 16 on eBay in teh UK at the moment for £420

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=2425079352&category=14771

Ad gives a UK daytime phone number of +44 20 86802651 if that helps.