First, I am so sorry for the unneces-cesarean. Second, congrats on choosing to VBAC!!!
I'm an HBAC in Sept, and this is what I have done and what I find important.
1)make sure you are healed from your past cesarean. Anything that is not healed now, will come up in labor and that's not the ideal time to deal with emotional issues. I read An Easier Childbirth and it helped identify a lot of stressors and such. Talk with your MW/MWs, and hire a Doula for this as well.
2)Go to ICAN meetings. www.ican-online.org
They are really helpful in gaining support from those who know the facts and have great advice
3)diet and exercise. Yoga is good for opening, stretching and BP. Bellydance is good for practicing pelvic movements you can use in labor to help baby get in good position and come down. Diet, RRL tea helps tone the female reproductive system. It doesn't cause labor contractions, but makes contractions more effective. High protein (80-100 grams a day) helps to prevent pre-eclapsia, and low sugar/empty carbs can help to prevent Gestational Diabetes. Some good exercises are kegels, pelvic tilts, labor squatting instead of bending down, other leg toning stuff too.
4) some good books that I have read are any Ina May Gaskin books, The Thinking Woman's Guide to a Better Birth, the Birth Partner, and Pregnancy Childbirth and the Newborn.
5)I would (and have) hire a Doula. Yes, I know a MW does a sort of the same thing, but this person's sole responsibility is your comfort, they don't worry about BP, hearttones, dialtion, etc. They are wonderful.
6) Believe in yourself!!! Your body was made to birth and your baby was made to be born vaginally.