I orignally wanted a Certified Nurse Midwife, but here they are few and far between. I felt perfectly safe with my CPM, especially since she always travels with one or two assistants and has a fellow CPM as backup for all births. I also had a doula on hand (which in retrospect was a little overkill).
I have found that CNM's have way too much pressure on them from the OB industry to be able to practice homebirth midwifery very often. They are under the thumb of the industry. Seriously. They can't move. They have so much baggage and so many rules they can hardly practice at all. If you do occasionally encounter a homebirth CNM, she's usually a rebel, or located in a very tolerant state. CPM's have much more freedom.