i am also a practicer of yoga - mine is kundalini, and i have found it nothing short of wonderful.
there is actually a kundalini mommy and me tape, which is very nice, i think you'll find it at amazon. it's by gurmukh khalsa.
btw, even though i have found kundaini wonderful, i have not found its changes too powerful to be practiced without a teacher. just the opposite - i've found it peaceful, therapeutic etc, and easy to incorporate with a...