All about trains

Our class has become very interested in trains. We are extremely lucky to have been chosen to take part in the "Keep on Track" http://keepontrack.scoilnet.ie/ project involving just 15 schools, one from each of the stops on the Dublin to Galway railway line.   Do you have any stories or books about trains you could lend us?  Do you have any train toys or models of trains?  Could you come and talk to us about trains or working with trains? Do you know any rhymes or songs about trains you could teach us?  We are really enthusiastic about trains!!!