Yeah SCCU 100's the 27th, sent my entry in but you have 'til end of next week at least I think.
Have you checked the Ribble site? If it's only for one or two events then they do some cheaper extensions, and if you get the bars from them too then you'll be over the £50 mark where they give you 10% off (15% this week). I've got some of [url=http://www.ribblecycles.co.uk/productdetail.asp?productcatalogue=PROFHBAT450000000000]these[/url] to clip on the road bike for the long TTs. Although perhaps a slightly higher position than some I don't want to be too low for that long for the sake of my back. Well made and plenty of adjustment for position.