On Sunday, before we began tear-down of the layout, I shot a couple of experimental videos with two different cameras on my new homemade camera flatcar (just an old K-Line plastic flatcar with holes drilled in it for bolting the camera to it). The first video is lower-definition and is a good approximation of a passenger's view from the train, and the second video was done with a higher resolution camera, and due to the height of the camera, the view is more of an approximation of the view of a brakeman walking on top of the train.
Note: Keep the sound volume low or off -- the wheels on the flatcar were squeaking, and I didn't have time to oil them.
Andy