...according to the 'Transparency International Corruption Perception Index 2007'.

http://www.transparency.org/policy_research/surveys_indices/cpi/2007

Does this fit your perception of the UK?

Possibly - despite an increase in high level political sleaze the business world and the civil service in Britain are relatively uncorrupt. Interesting to see that northern European and English-speaking countries feature heavily in the top twenty. And that Iraq, despite its marvellous good fortune in having an Anglo-American colonial administration, is next to bottom.