Heather:
When I first watched them, I didn't think that they were anything like Cathe's, however, i bought a 9lb, 12lb and 4lb bar and using the 9lb bar, I couldn't keep up. I bought the Express DVD which has 5 different workouts in it (Intro, Basic Training, Abs/Back, Upper Body, Lower Body) and they are all difficult - I say this dvd is focused on strength training. I did buy one of their VHS tapes for 10.00 - STEP/Body Bar - and it is 30 minutes of cardio and 30 minutes of strength training. Sherry Catlin is an excellent instructor! I think you will be pleased with your purchase. Remember to look at the "packaged deals" - I bought the Express DVD with 2 bars (12 and 4) - great deal - you save $20.00.
Have fun!!!
Elln