Jen, what I'm going to say doesn't really have much to do with getting the support you want, but I have had both an induced vaginal birth with gas and pethadine (which made me spew!) and a completely all-done-on-my-own natural vaginal birth with a doula. By far my natural birth was sooo much easier. I didn't go to hospital until I was 8cm dialated and ready to pop because I didn't think it was painful enough for me to be in serious labour, compared to my induced labour. I did it all by myself for HOURS before going to hospital. DH was at his soccer final and I didn't bother my doula because I had been in and out of labour/prelabour for weeks.
My emphasis here is I did it on my own. Don't let your DH or anyone else tell you you can't. If you think you can, you will. But you have to really have faith. I was just so absolutely terrorfied of C/S and really didn't want another induction, or drugs from my experience last time that I knew I had to do it on my own. So I psyched my self up and I did it. In hindsight, it wasn't all that tough. I actually kind of enjoyed it. I had a great empowered birth. My doula was excellent (and I would reccommend her to you if you're in sydney!) My DH was fairly useless both times. He was there in the room, but not really present or all that supportive. But I couldn't deny him the opportunity to see his children being born. As it was, he helped birth DS, and cut both of the kids cords, saw them both feed for the first time, etc...I couldn't not let him experience all of that. Even if he was useless most of the time!