This is what the birthday fairy brought me the other day.....Awesome & jaw-dropping..!! They're Precision Craft Models F3A & B....with stainless steel sides..!! Really gorgeous..!! Now I got to install a decoder in them...will probably go with sound as well. I got a question here...Since the units are "factory MU'd" (there's a connection between them) will I need just the one decoder in the A unit..or in both..?? Also...Does any one know how to take the shell off ? I'd hate to go "exploring" and run the danger of screwing something up...Lastly...the lights aren't working - any reason for this? The manual says that lights are on continuously when used with DC...but no joy...:cry: Now I'll have to ask Santa for a few coaches to make up my Super Chief....!!!