traintimes.org.uk is indeed rather splendid... It's written by one of the chaps behind mysociety.org, they of theyworkforyou.com and whatdotheyknow.com fame, to show that it's perfectly possible to have a javascript etc free, and therefore very accessible, frontend to the National Rail enquiries site. This is utterly commendable; more gen can be found on his webite http://www.dracos.co.uk/play/