I've had two babies at home, and each time I found it important to feel prepared for the birth (as in - the stuff is ready.) and to feel safe. Is your midwife aware and in tune with your wishes, re: transfer, and other things? If you feel like you are on the same page with her, I think that will be a big help.
I loved reading Ina May's birth stories, and being reminded about how normal birth is supposed to go - no interference, no fuss, just let the body do what it's supposed to and get that baby out! And there are some good birth videos available online - I liked those too. Search YouTube for homebirth, or waterbirth, or something like that. Did you see the video clip of the VBA2C here on BellyBelly? That was a great one.
I also found it helpful to think about what might go wrong, how I would know that something was going wrong, and what would be done in that case. This might sound weird, and you don't want to dwell on the "what if's" at all, but I think it's good to know that there is a plan, and to be aware of what the plan will be, if something goes wrong. That way your mind isn't going to be jumping back to "but what if THIS happens!!!" (panic, stress, stress) because you will answer yourself "If this happens, I/my midwife will know because.... and we will do ...."

Hope all goes well for an amazing homebirth!