Those of you who have read my previous posts know that I model Chicago's Union Station. I have 6 tracks, and 3 platforms, and I was wondering about wiring. I run standard DC, and use 2 power packs, to allow for the capabilities to run 2 trains at once. I want to run all my lights, switches, and power packs to one control panel. I will have standard lighting for buildings, and simple red/green signals for each track to dispatch trains. What is the easiest and simplest way to wire all this together?