Thanks guys. I enjoy sharing my layout with you, and your comments help to provide me with motivation to keep the ball rolling.
Chip, it really is a cave. I designed the house with 2 windows in the train room, and the first thing I did was cover them up with sheetrock. There is one other important element to the "man cave" concept that you haven't seen. Just around the corner, in the other room, there's a full sized refrigerator.