I used hypnobirthing with my first child. I actually liked "Hypnobabies" (http://www.hypnobabies.com/) best. It was a really good program with directions that I could follow.
(The other popular program, the Mongan Method, didn't have enough direction for me.)
And it worked! I fell asleep between contractions--I'm not kidding. And you know how it's hard to sleep when you are pregnant? We listened to the meditation tapes every night and slept fabulously.
That's my recommendation!