I'm interested in building a HO model railroad for myself and son who is three and loves trains. He has his own Thomas table, so this will be a nice layout for both of us to enjoy for years to come. I have been doing a lot of research, which I understand is a good thing, and feel like I am just about ready to "break ground" so to speak. For the sake of saving a little cash, I have a 5' X 9' ping pong table in my garage with I would like to use for the layout...with the intent of expanding. I also plan to cover the top of the table with foam for the layout. Growing up in Cumberland, MD, I have a keen interest in either the Western Maryland railroad or the Chessie System since I watched these engines pass my house every day. Will using the ping-pong table be OK? Does anyone have any 5'X9' layout plans that have worked well? thanks and all advice is greatly appreciated.