For the excess skin, I highly recommend weight training. They don't need to be heavy weights, 1lb, 3lb and 5lb to start with. There are some really great weight training books for women that talk about using weights to get toned (and not the bodybuilder look) out there. One of the great benefits of weight training is that muscle requires more calories to sustain itself than fat. So, the more muscle you can build, the more calories you can burn when you are not exercising. (It's the reason that men have an easier time losing weight than women do, they naturally have more muscle mass on their bodies).

Welcome back and keep up the good work!!!
Laurie