i love tae-bo it's the best workout i've ever had i have so many tapes- that's awesome that you love it as much as i do it seems- i like that 21 day challenge- i want to start tomorrow!!! and i agree- caloriesperhour.com is the web sight i use for every calculator too! my email's red8705@hotmail.com if you're interested in keeping eachother motivated for the taebo challenge...