All Aboard!

For sometime I have thought a nice (large) train set would be fun but I was never interested in one unless it could be a permanent structure. We have a very large storage room off of the living room so train land has arrived. I asked Emily if I could get a set before my birthday and she said no problem. After some education online and a trip to the local Hobby Town, I am "working on the railroad." It was like a late christmas morning, I spent the whole evening training. Anyone got any good model train sites?
Big kid, or just a late child hood, we could all use a little play.