I have been looking for one of these around this price for a while and found it tonight.
These are £185 on Currys website, web exclusive offer, and with PRICE10 code it brings it down to £166.50. Finally managed to get one for us and one for my parents for Christmas, along with a Roboreptile!
The Tomtom One Europe is also at a good discounted price and with the PRICE10 code you get 10% off too!
Hope this helps someone.