Please be careful when asking around though. I work in a hospital lab. We have a lot of women come in and ask for the VBAC. While some women can, those who have had more than 2 term pregnancies and have had c-sections are NOT advised to give birth through the vagina. The more pregnancies you have, the more your uterus has been stretched. The more the uterus has been stretched, the more it is weakened and prone to tearing. A tear can be life threatening for you and your unborn baby. You need to be informed of the risks and weigh them against the benefits. You have to look at your OWN risks, not the risks of others. While you can "try" for a natural birth (I am all for that), please go to a hospital that will allow you to try in an operating room so that an emergency c-section can be performed if needed. Most doctors will not do VBACs in women who have already had more than 2 c-sections due to the risks of uterine rupture. It is not because they don't feel like it or because c-section delivery is faster and easier (on them). It is because of the risks involved and sadly because of the medical malpractice risks.
So, if I were you, and I REALLY wanted to have a VBAC, I would first weigh the risks against the benefits (some of the risks for you may be why you had c-sections in the first place i.e. large baby, too small hips, long labor without producing birth...these are all risks for VBAC, large babies stretch the uterus even more, prolonged labor makes the risk of uterine rupture greater, small pelvic canal and hips make delivery difficult)and make sure I found a doctor who would most definitly be there for my delivery, a doctor who knows to try the natural route in the OR in case of complications.