Tanya, I'm actually planning on having a homebirth. My midwife is giving me the services for around $2,000. Let me tell you it pays to look around.
This is my forth baby though, not sure if this is your first or not. I think that they may charge abit more if you are a first time mum as you need abit more um- preparation I guess.
Let me know if you are still interested in having a homebirth or even if you want more info and I can point you in the right direction.

Take care
Trish