I'm not sure if this link has been posted here before.
I have recently come across this poster on flikr; gylesnikki, Gyles Carpenter.
This guy has posted the best transport photos I have ever seen.
He has a real "eye" for the subject and really knows how to take a great photo, his composition is superb.
He is using good gear also.
In fact, I think, his site should be required viewing for all transport photographers.
Look and enjoy.
Here is the link, ( I hope).
http://www.flickr.com/photos/47995614@N04/
Mike