I just wanted to reiterate what everyone else has pretty much said- support people who actually support you, and are clear on what you want, are vital. Sometimes birth- even a really good birth- can leave you in a state of shock, wher you just - "uh, yeah, ok" to whatever anyone. You really need someone who is very clear on what you wnat, who will jump in and remind me of what direction you wanted to head in (and tell your medical staff the same). I think that is where a doula can come in really handy.

Good luck with your birth