N.B.
I work on sign with my daycare kids and we use Signing Time. I have most of their collection of DVD's (if you buy them in the 3 sets I think they still come with a CD of all of the songs form those 3 movies....we listen all the time and when we watch a DVD and the songs come on my kids get all excited! I made copies of the songs for all of them so they listen often in their cars with their parents too).
My kids love this way to learn signs..and I am learning along with them.I have used them for so many years that I had to upgrade my set of volumes 1-3. The kids in them, Alex and Leah, are older now! (Leah was born deaf...Alex is her cousin...Leah's Mom, Rachel does the signing and fun songs and al that...narrating and instructing)
Good luck!