Since We're on the Tantra Tip ...
They've got Mark Whitwell's Yoga of Heart at Netflix! If you have an account, cop the DVD, 'cause Whitwell is hot fire! To swipe the blurb, he "explores the deeper tantric dimensions of hatha yoga through the male surrender to the female principle." He's a lovely man, and he has a great take on Krishnamacharya's later teachings.