Well I found this HO layout on line and I really like it. http://tysmodelrailroad.blogspot.com/p/design-planning.html I am a "continous run" kind of guy, but will most likely add on a 2'x4' yard in the future. Since I have only a 10' x 15' room for my layout, this 4'x8' one fits the bill for me. Before I start to purchase lots of stuff, I wanted to put this question out there. Good choice? Has anyone built this besides TY? Please feel free to comment or offer any advice or opinion. I can take it.