Hmmmm,let see here,
Inter-Adv tapes, hmmm, I would have to say for your cardio Mega Step Blast & Step Heat. If you want cardio and strength mixed on one tape, get BodyMax & The Wedding Video. Just strength? MIS & PS Series. Finally get the new 8 pak as Deb H said, It's got a little bit of everything!! Please notice, in my suggestions I did NOT say get this OR that. I said get this AND that!! You will love them all and all of Cathe's tapes compliment each other so well, that you will soon be doing what I am doing. I got my first tape about 2mo. ago and now I will soon have 14{as soon as the 8-pak arrives!} Hope this helps!! Aimee