WinLok software from DigiToys Systems/TannerSoft has what it takes if you are thinking of making your model railroad run with your computer. For those of you that are curious about what my CTC panels look like, here are a couple of them:

This one is of the Norfolk Southern {Railway/Short-Line/Old} NS-Line from Norlina to Fetner through Raleigh, NC.

This one is of the Seaboard Coast Line S-Line from Greensboro to Greenville through Raleigh, NC.

For those of you that want the program, here is where you can get it: http://www.digitoys-systems.com/DigitoysInt_e.htm