More to explore:
CrossFit-Style Beginner Workouts
She has amazing work outs that usually take around 15-20 minutes and work you very hard! She puts videos on her site for beginner, intermediate, and advanced levels.
Zumba workout (10 min video). I think this is Tanya Beardsley. I'm sure I look like one of the dancers in the back. Ha!
Victoria's Secret Model's Full-Body Workout in 10 minutes!
Best Butt Workouts: Lift That Booty!
TONS of different workouts: Insanity, P90X, Bootylicious, etc.
this website has TONS of workout videos, including all of the p90x workouts, plus lots of workout tips and stuff.
Workout while you watch!
love this workout