Yesterday I stopped in Fry's Appl Store in Downers Grove IL.
I picked up Microsoft Train simulator by Atari for $9.99.
Hope to install it later today.
There should be activities for each route. If you are expecting fireworks or something, this is a simulator. Real world.
Please check out the forum for some places to find free and payware sites to find more stuff. There are a ton of free activities for the original routes, though once you are exposed to some of the other routes you will probably never drive the old ones again.