I buy all my yoga dvds off Amazon.com - used - they are great source
I love Bryan Kest for strength - Energize/Tone/Sweat
and I love
Total yoga (Earth,Air,Fire) for stretching and a great well rounded intermediate workout.....
I love Rodney Yee for a quick energetic workout - his Power/Strength 20 mins are excellent addons to create energy/strength and flexibility before or after a workout......
Baron Baptiste sort of drives me nuts, but the workouts are good.