Mixxtreme is definitely less expensive, but I've read some reviews and some say it is too easy or will become too easy after a few rounds. I'd definitely be willing to pay the extra $ for DreamBody, but I've read mixed reviews on these as well. The usual "too frantic" pace. I'm leaning towards DB Cardio because the stability ball work in the original 5 dvd set doesn't look like something I"d like, but who knows! Is one series less hard on the wrists than the other??