Collage Video -- Exercise Videos Work!
I found this really cool website browsing around. It has a ton of workout videos, including 71 dance-related exercise videos. Each one has a one-minute video clip to view online, and each video has been viewed at least once by a certified fitness instructor (at least that's what they say).
They also are categorized by type of fitness (aerbic, toning, etc.), and fitness level required.
:)