Thanks for all the tips...
My first stop was Engine House Hobbies. That was a great store. The owner is very nice, allowed me to shop by myself as I needed to and was there when I asked for help. We had a very enjoyable conversation as well. I was there long enough to watch a CSX train go by as well. Very fun.
My next stop was Hobby Works. I equate it to a Hobby Town on steroids. Fun for most novice to average modelers of all sorts. Better for RC stuff than for trains.
I did not go to the The Toy Exchange because my GPS could not locate the town of Wheaton in MD. GEF, I wish I had seen your post earlier... I would have tried Mount Airy, MD.
On the way home, I decided to head west to Manassas to visit the Toy Trains & Collectibles. It was out of the way... The shop was ok. The owner was very nice. The prices were high in my opinion. I was glad I took the long detour home. There was a big accident on the beltway that snarled traffic. I just continued on 66 West to 81 North.
I was going to stop at the Train Room in Hagerstown since I was going to drive by but I had to get home in time to get my son from practice. I have been to that shop in the past... lots of nice stuff there too. Kind of pricey though.
Again, I appreciate all of the help. Engine House Hobbies will certainly be my new stopping point on my way to DC in the future since Catoctin Mountain is now gone.
Ron