I like it a lot! very nice model.
For the tracks you can use sections the cylinders used as the drive and bogie wheels that are at the tension points cut them at the tangents, combine them, and finally use the bridge tools to connect up the sections. I will see if I can put a video together for you.
Animating the track is a whole nother can o'worms though and I am the right guy to suggest how to best do that.
Rick
"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675
Last edited by ctbram; 20-08-2011 at 12:49 PM.