I am currently in the process of finishing up and most likely renovating my HO scale layout. I basically have one loop of track, as the pictures show. The questions I have are: 1.) What do you guys think I need to do in order to finish up the layout I have (I'm currently painting some pedestrian figures for the sidewalks and looking for cars for the streets)? 2.) How should I go about adding another loop of track? I'm thinking a completely seperate line, with a seperate power pack and all. The goal is to run two trains at the same time. Here are the pictures, and some specs: Layout is 4' x 10'. There is room for expansion in any and every direction for the extra loop. There is, roughly, an 18" gap between the wall and the rear of the layout for access, but it is possible to move the entire bench outward, in order to expand the rear.