I did natal hypnotherapy...First baby, planned homebirth 7months ago
I read the book cover to cover, also a few other home birth books
i did pregnancy relaxation 3 - 4 times a week from 16 weeks pg
then from 32 weeks i listened to effective home birth preparation CD (which i found impossible not to fall asleep to, and would wake up at the end feeling like I had been asleep and couldnt remember what i had herd)
I also drank lots of raspberry leaf tea, did a bit of perenial massage (not as much as planned) and got the helios homebirth homeopathy set too, and once i had reached my due date had a clary sage bath at night.
My Mum gave birth to both me and my sister (in hospital) with no pain relief except homeopathy.
I had have genuine belief that birth doesnt have to be pain-ful / scary etc and that as a mammal i am designed to give birth. I was not worried, and thought if my mum can do it so can i....
though I did get pethadine in, and ask midwifes to bring gas and air, and was happy to use them if i decided i wanted them
My natal hypnotherapy gave me a bond with DD... I geuienly felt she knew what she was doing.
I had lots of stressful life event planned when i was 38 / 39 weeks pg, and she was due on my birthday... I didnt want to share my birthday, but was happy for her to come from the day after, when all the stuff had happened.
The day after my birthday i had my morning shower and told bump that now was the time... i was now ready for her to come
i think labour started within 2 hours but i wasnt aware... i thought it was late pregnancy niggles which i had been having for weeks...
decided it was probably labour at about 3pm and called midwife... she called me back at 7pm.... it didnt really hurt.... i still thought it was the early stages, at 9.30pm i vomited so called midwife just to tell them... was still not sure if labour as it didnt hurt that much, though i had got my TENS on, on level 1, just cause i thought i should
Midwife asked if i wanted her to come yet, i didnt mind.... still didnt really hurt, couldnt be that far on... but midwife made the decision to come and see me..
she arrived 10pm, and by the time we had done obs between contractions and examined me it was about 10.15... I was 7cm (i was hoping to be 1 or 2cm, as i did feel it was now real, but i still thought not painful enough to be it!)
20mins later i was a Mummy! DD born safely at home without any pain relief.... I didnt push her.... she shot out herself.... the last 2mins was not that pleasant, but all managable (I turned TENS up to level 4 for the actual birth).
(Midwife 2 didnt arrive until 5mins after the birth!)
I didnt have time to get in my pool, or switch on my birth music CD or get my oils etc etc.... but i did have the easiest most pain free birth out of everyone i have ever met and I attribute that to my natal hypnotherapy.
Also in those early days the only thing that soothed fractious newborn DD was listening to the birth prep CD and birthing music... i know she knew / recognised it, and was calmed by it and it was worth it for that too 
Good Luck. I hope to do the same for number 2, and plan to get my pool sorted as soon as I wonder if its labour... I will trust that it is!!!!