I've seen pictures of working (animated) jill pokes at the log dump, and working inclines (log cars lowered by cable down 40%+ grades). But how well these worked in actual practice over a period of time is an unknown.
The other issue that comes up with animation of any functional process is replenishment and removal - very similar to the old loads and empties of open top freight cars. How do you keep a fresh supply of logs going into your saw mill? And what do you do with the lumber that has been "sawn" from those logs?
Lionel, the master of toy train animation, often used unrealistic continuous loops to solve this problem. The conveyor belt log loader, various coal loaders, horse and cattle ramps, and barrel loader were examples of this method. A car would unload into the accessory, and the accessory would reload the car at the other end (sometimes not as successfully as one would expect!)
Or the operating accessory required manual reloading. The milk cars, reefer icing, and saw mill were examples of this scenario.
On my HOn3 line, I don't expect to do any animation of the loading of the lumber from the mill onto the dog hole schooner. Just too complicated, and will likely require too much manual reaching in to reload or extract loads. What is in my "someday" plans is to set up a method to occasionally generate fog, play sounds, and possibly a shot or two of the aromas that might be typical of the scene.
My favorite magazines as of right now are Model Railroader and Short Line and Narrow Gauge Gazette. Railroad Model Craftsman may eventually substitute for Model Railroader. Model Railroader serves as my general model railroading news source, and keeps my up-to-date on what the mainstream elements of the hobby are doing. SL&NGG does the same for the narrow gauge world but adds the prototype info and plans that MR used to have. But as I have developed in the hobby, I have found that I need the more specialized books and special issues to learn more about my interests (1870-1900 era short line, narrow gauge, and Western logging). The Gauge, trains.com forums, and select Yahoo Groups have also become a regular part of my reading, and help me with my withdrawal symptons of not having my trains or tools available to me right now.
my thoughts, your choices