26 September 2008 http://service.meltwaternews.com/mnews/redirect.html?docId=519150983&userId=683154&cId=197010&agentId=103736&type=2&s=48657&url=http%3A%2F%2Fwww.building.co.uk%2Fstory.asp%3Fsectioncode%3D29%26storycode%3D3123504%26c%3D0
