Some of Leslie Sansone's for mild/moderate cardio.
Zumba for moderate cardio.
TurboFire for intense cardio and some strength
Ellen Barrett for balance, flexibility, mild cardio, and stress reduction
HIp Hop Abs for moderate cardio and a little strength
2 DVD's from "The Firm" for strength
I also have a couple little kettlebell DVD's for strength
I've been using DVD's for about 5 years now. So I have developed quite a collection.