Hi,
I am a huge fan of all of Ellen Barret's dvd's. She blends yoga and pilates and sometimes throws in some ballet. Her most recent dvd's are Fat Burning Fusion, The Yogini Workout, and Slimsculpt. All are available on collagevideo.com. Also, she released one under Crunch fitness and it's called Superslimdown Yoga/Pilates blend.
Hope that helps, good luck!