My wife and I are planning a trip to the Rhine and Mosel valleys. I am looking for info on accomodations and points of interest in the area. At this point, I am planning to fly into Dusseldorf, spend a couple of days in Cologne, and then explore the wine country. The towns that I would like to see are, in no particular order, Coblenz, Mainz, Cochem, and Trier. Any suggestions?