I guess I am a newbie but I will ask. I want to do something simple. I have the opportunity to run a nice setup around a large room (a game room that is the second floor of a boathouse). I figure the run will be a single loop with 160' of track. ----- Question on powering the locomotive My experience with O scale is my dads old train which is probably a 16' loop. When the engine gets to the tracks farthest from the power source, it always slows down (It a pre-war train). It is very noticeable. I can only imagine what a 160' run would be like. So, how can this be overcome at low cost? I was thinking of running some heavy wire like 10-2 or 8-2 along side the track and tapping in every 30 feet or so. This would reduce voltage drop greatly. EDIT: I just had the realization(I have a BS in Electrical Engineering ... 10 yeas ago) that all I need is a current source, not a voltage source. So long as the power source keeps the amperage constant, the train should run steadily. A current source is a simple circuit. I could research it and build one if I need to. ----- Pulling capacity I figure 20 or so cars will be pulled (eventually) due to the size of the track. In terms of locomotives, what should I be concerned with? Do I need multiple engines? Also see my section on grade. ----- Grade I might end up doing 2 loops around the top. Some sections will run next to each other and some sections will be stacked. So for the stacked sections, what kind of grade can I do? I like the Southern 2-8-4 Berkshire and remember, I expect to do 20 cars. I figure the grade would be 3" over 10' would be the most I would want to do. That is a 3" change over 120" , so this is jsut under a 3 degree grade. Due to the rooms layout, I can toy with the grade a bit. I can remove the grade mostly, but I want to know what is realistically possible. ----- Cost Can track, an engine, power and controls be done for under $1,000? From my research, I think I can do the track for about $400 (2.50 a foot). I found an engine I like for $280 (Southern 2-8-4 Berkshire). What will the rest of the "stuff" cost? ----- Random The most fun I am going to have is building a bridge that is about 12' long. I can not wait.