The Gaiam Rodney Yee's Yoga For Beginners DVD would be an excellent fit for those looking to start or deepen their yoga practice.
Rodney Yee's Ultimatives Power-Yoga von GAIAM (DVD)
Gaiam - Yoga Journal's Yoga for Energy and Strength
Gaiam Yoga Core Cross Train [DVD]
Gaiam Am Yoga For Your Week [DVD]
Ultimate Power Yoga by Rodney Yee
Rodney Yee's Ultimate Power Yoga [DVD]