Train Simulator is a very fun game I sometimes play it. There are a lot of fun routes such as ATSF Seligman Sub, San Diego and Arizona, and lots more.
Itll RUN the program, but not very well. Id imagine about 10-20 fps in Medium Graphic mode.
To fully experience this program, I reccommend upgrading to 1gig of ram and a more recent video card (as in newer than 4 years old).
David