Pentax are doing a money back offer on purchases of the new K5, or K5/Kr with kit lens.
£120 (€150) Cashback on PENTAX K-5 with any PENTAX lens
£80 (€100) Cashback on PENTAX K-5 Body Only
£70 (€80) Cashback on PENTAX K-r with any PENTAX lens
You have to buy from participating retailers (see list from site) and is for purchases from tomorrow to the 15th January 2011.
Could get you 8% to 10% back. Not sure about specific retailers and quidco.
---- not sure why it's expired or why the direct link gets bounced by the pentax site. Just tried it again (http://www.pentax.co.uk/cashback) and it is still showing the deal from 4/11/2010 to 15/1/2011.