Hugh,
You may find a quick blurb about the following site gets quite a good reader reaction. As a Ham of just under five years, the best site and aid I’ve found to learn Morse code is at lcwo.net. They focus on the Koch method and have several types of training courses. In just a few weeks of daily training, you’ll find that your comprehension will pick up quickly enough to start picking up operators on the air. – A Ham in Colorado