After meeting with our doula yesterday, she's got me seriously considering switching from my OB's practice to a midwife that she recommends pretty highly. At this point I'm just about 23 weeks and we've already paid the full copay, and while DH was fine with getting a doula, the idea of trying to get our money back is "really stressful" for him and he's worried about hassles with that and my insurance. I don't have the best track record when it comes to hounding my medical providers or insurance either - I hate all of that crap so much I usually avoid it like the plague. That said, the idea of being able to use an experienced midwife, now that I've really given myself the chance to consider it (and watch TBOBB last night) is pretty awesome sounding.
If anyone has made such a switch and had to get money back from their OB, I'd really like to hear from you!