I also agree with all the points about being open-minded and not too attached to the plan ... BUT I also think that if you decide you want a drug-free birth, it's important to do some reading and prep so that you are ready. I had a really lovely experience, and it was drug-free, but I know that if I hadn't done the reading, classes, and "practice" ahead of time I wouldn't have been able to do it. THe books I loved were Birthing from Within and Spiritual Midwifery --both really helped give me confidence, which I think is CRUCIAL for any kind of birth.