I saw this on another forum, thought it was worth sharing. The photography (videography?) on this video looks very professional:
http://web.me.com/camarillopacific/Camarillo_Pacific_Railroad/Official_Video.html
I love the camera movements. Apparently he uses some pro equipment for that. I want to try to build something myself that will do the same thing. Might not be as smooth but I bet I can put together something that will work reasonably well.