I'm considering a trip to France this fall. If I do make the trip, I'm anticipating about 4-5 nights in Paris, a night or two in Normandy, and a couple nights in the Loire Valley. For those of you who have visited the Loire Valley, any recommendations on the best castles visit, the best cities and/or villes to wander about, and the best vineyards to enjoy delicious wines? Also, how easy would it be to coordinate travel between different areas? Do trains connect the best spots to visit? Or would a vehicle be a necessity? Perhaps it's better to find a good tour group that can plan/organize everything? FWIW, I can somewhat read French (took French throughout high school + a few classes in college), but my ability to speak it and especially to understand spoken French is rather limited.