I have discovered a wonderful unsung workout DVD category- Cardio Dance Workouts! They are available in just about using just about every style of Dance around the globe. My absolute favorite is the Island Girl Series- Cardio Hula, Hula Workout and Tahitian Hip Hop just to name a few. These are rigorous workouts and you get to learn polynesian dance choreography. These dance workouts rival crunches and are much more fun. I believe they are safer (I have injured my neck doing crunches-ouch!) The Island Girl series is abundantly available on ebay. I also recomend a great cardio-salsa workout- "Dance with Lisa" This includes a slow demonstration of all dance steps that you can learn and practice before attempting the full workout. Dance workouts also include Hip Hop, Bellydance, Brazilian and possibly others!