AnneMA
Cathlete
Zumba seems to be very popular, although I've never tried it and not sure if it's my thing. I don't typically like heavily choreographed or dancy step DVD's, for instance and prefer more athletic moves. I did see an infomerical and everyone was really sweating though. Any diehard Cathe fans out there who have done Zumba and can fill me in and compare to Cathe (if there is any comparison, that is.) Maybe it's just one of those exercise fads that will come and go.