I tried my hand at laying some track, a building or two and took a shot at scenery in Trainz 2006's World Creator. I set the unit into HO scale and used three squares to the foot. I laid one track and put a switch to reach the Engine Shops. Then I placed a B&O F Unit Consist in the world.
This is but a baby step to what I think will be a new railroad on the computer itself. Perhaps this would be a way to build a railroad and test it out before actually building it in the new room.
Without further ado:
Go to this site here http://www.hp-trainz.de/html/free_sc.html and download there MP Track Pack and MP Track Pack 2...It is a lot better and more realistic....