From the BBC ( http://news.bbc.co.uk/1/hi/world/8651231.stm )
3. The UK itself already provides plenty of examples of both PR and coalition government, at the level of local government or national assemblies . One form of PR, the single transferrable vote, is used in elections to the Northern Ireland Assembly, in local government elections in Northern Ireland and Scotland, and in Northern Ireland's elections to the European Parliament. Other forms are used in elections to the Scottish Parliament, the National Assembly of Wales, the London Assembly, and in European elections in England, Scotland and Wales. "Most British citizens are also familiar with multi-member elections in many other situations, from the election of School Governors to the election of governing boards of interest groups, professional associations, trade unions, university student unions, sports clubs, and many other organisations," write Professor Hix and his co-authors in a report for the British Academy, Choosing an Electoral System. "In fact, multi-member elections may currently be the most commonly used type of election in the United Kingdom."