J.P.
Hi M.. I also had a c-sec with my first baby and plan on trying for a vbac with any future pregnancies. As far as my own research, I have found that OU Medical Center is the only hospital in the OK Metro that will allow vbacs. They also have a midwifery staff that is backed by their ob/gyn staff. Their midwives seem to have a lot of experience with vbac and natural birthing. I have not used any of the midwives or doctors at OU but plan to visit them when we start trying to conceive again. I've listed two links below. The first link will take you to their midwife page and the second will take you to their ob/gyn page. I hope this helps. Good luck!
OU Nurse Midwives: ###-###-####
http://www.oumedical.com/body.cfm?id=235&oTopID=235
OU Obstetrics and Gynecology: ###-###-####
http://www.oumedical.com/body.cfm?id=103&oTopID=42