Livesteam,
The Challengers have been out of production for a while, and I think the only way to get one is search the hobby shops or ebay at this point. Con-Cor keeps saying that a new version will be available, but who knows when this will happen!
Best pulling steam I have has to be the older Rivarossi Challenger, and the best pulling diesel I have is any combination of the new Intermountain FT locomotives. I don't have any newer era locomotives so I'm not sure what works well with them but my ABBA FT set will pull more cars than I can...
Radio Shack switches...
I actually came across an article in a magazine (I can't remember which one now) where a simple DPDT slide switch mounted next to the turnout could be used with some .025 steel wire. I am using C55 Micro Engineering stuff and was having a heck of a time deciding what to...