got leaflet at swimming pool the other day about the Zoggs Swim 4 Fitness site. There are 4 levels, depending on your level of fitness and swimming skills, and how much time you want to give to it. It gives programmes to follow to improve fitness and swimming skills, and the first 2 stages give lots of breaststroke options - this is good, because many programmes assume everyone is a competent free-style swimmer (although the first programme starts at 16 lengths, so you need to be a reasonable swimmer to start with). Anyway, I might try out one of them, probably 3 for "improved cardio-vasucular fitness".