*waves* Hello from Crazyville, population me!
*giggles*
Righto, so... I'm currently sitting here in my term window (today makes 38 weeks and 5 days) waiting for my darling to decide (s)he wants to come into the world. This is my first child, but I knew long before conception that I was all about homebirth... and insanely grateful that the UK is supportive of the option.
I'll admit hospitals were part of the decision for me - I'm gibberingly frightened of the strangers, the noise, the lack of control; it would be... very very stressful for me if I had to go into hospital for any reason. While if you're at home, you set the mood - the music, the lighting, WHERE in the house you intend to have the baby (and my midwife, at least, hasn't pinned me down to a specific location; she accepts I want to roam), etc. When you eat, what you eat, when you get in and out of the tub (if that's one of your pain relief options) - it's all on you. Add in the fact you're in an environment that you and your baby are already used to (germ factor), and it's actually a lot healthier in general!
Now, if you were planning to get druggies... I know my trust, at least, isn't that supportive of such for homebirth cases. They've made it pretty clear that if I wanted any opiates or epidurals, I'd have to go into hospital. I'm not completely sure how accurate this is - I keep finding conflicting information. Nor does it matter in my case - I'm determined to do this all natural!
But anyways, I think it's great... at current; ask me when the kiddo decides it's time to arrive! And in the meantime, I believe this is probably one of the better references you can find:
http://www.homebirth.org.uk/