I meant to mention also that I get a lot of enjoyment out of Microsoft's Train Simulator. It has both steam and diesel engines and you can adjust the amount of realisim you want. There are many activities from passenger runs to freight hauls, and many situations invoving coupling and uncoupling on various sidings or running a passenger line on certain schedules. You can choose to fire your own steam engine or let the game do it for you. Water levels in tenders can be manipulated along with a miryad of other neat features. I saw the Train Simulator at Best Buy, (a computer chain type store in our area, possibly national also) for under $30. Worth looking at if you enjoy trains.