Bob Harper's kettle bell dvd, the cardio, inside out one, is awesome. Strange to watch the assistant girl because she seems to be out of the loop, unrehearsed. Good in some ways, to make you feel like you can screw up, bad in some ways because you don't have someone who's actually doing the exercise all the time to reference since bob doesn't do them all while talking you through them.
Excellent workout though.
linkage: Bob Kettlebell Cardio Shred