Bit of an update. I've been browsing eBay and there are lots of options - a couple of well-rated Hong Kong sellers, the cheapest being £628 for body+lens+256mb card, plus £30 shipping "no duty guaranteed".
Another interesting one "carmansphotosource" which has a body+2 lenses+2 batteries+256mb card for $AU1500 (£608), much less than a lesser pack targetted to UK buyers! I've send a msg as if I didn't know they have UK sales (on another ebay ID, 3k+ feedback) to see if they are willing to do a deal. All have shedloads of feedback (3k+) so I don't expect to get screwed.

Gareth