After 20+ years of marriage my wife confines in me that she has always loved electric trains. I got her a HO system made by Bachmann but had issues with the engine.  The retailer now out of business let me swap it out for Santa Fe Flyer which i was happy to see that the luggage car was also powered.  Today I got her the Chattanooga set and want to combine them so that both systems run opposite of each other.  Is it possible to do this or do I have to run them separately?  Also any suggestions for a decent layout for two 47x38 ovals?  Get this I also discovered that my 4 year old godson loves trains too so i brought him his 1st set a circled system.

All this train talk coming from a guy who lost his leg to a train as a kid.....ironic