Since this comes under DCC I will post this here. It is a hot topic and there will be a couple clinics at the West Springfield, MA show Jan 29th and 30th. The link to the clinic info is below. I initialilly found the info by Ken Cameron in a couple Yahoo DCC Groups.

There will alo be clinics on different DCC systems.

http://www.railroadhobbyshow.com/whoswho.asp#2009WW

Make sure to keep checking the site for updates. This is a huge show. Print out the building layouts and vendor list.

Rich