Hiya,
Unless they offer domino (which stands for domicillary in and out) births in your area it won't be an option for you. It used to be on offer in quite a few areas, but not so much these days.
I think the most important thing for you to get your head around, whether you go to hospital or stay at home, is that nobody can force you into anything when it comes to having your baby. They can ADVISE you to do certain things, but they can't 'make' you do them. And that goes for everything, whether it's continuous monitoring during labour, induction, birth positions, whatever.
However, if you want not to be sucked into the 'sausage machine' you have to be prepared to take responsibility for your choices, which is something that not many people these days are willing to do. We want to choose how we give birth but we also want the professionals that support us to always guarantee that all our choices will be 100% safe, and the truth is that this will never happen.
They aren't supposed to tell you that you're not 'allowed' a homebirth - it is your choice. I know women who've had VBACs at home with the community midwives after having been told they weren't 'allowed' to. What these women did was go above the head of their community midwife and contact the supervisor of midwives. Generally the higher you go up the 'food chain' the less bullying you get.
What I suggest you do is what someone else on this thread has said - look at the information on AIMS and on the Yahoo Homebirth list. If you can find out whether your local branch of the NCT has a homebirth contact it would be useful to talk to her as she is likely to have good local knowledge and might even have contacts at the hospital that could smooth your way if you run into any problems.
Before you meet with your midwife find out what your Trust's stance on homebirth is. I'm sure you'll find that they produce a leaflet on place of birth which encourages women to consider homebirth as an option. I know our trust does and I'm sure you'll find your trust is the same as it's now government recommendation that all women be informed of the option of homebirth.
If you do decide to have a homebirth
(and remember that you can opt out at any point up to and during labour), then tell your midwife 'I would like to book to have my baby at home'. I advise that you don't get involved in trying to justify your reasons and you respond to negativity by simply repeating your request politely, ie "I appreciate your concern but I still wish to have my baby at home." If it looks like serious obstacles are being put in your way or you are told that a midwife won't be available then don't argue - simply write directly to the supervisor of midwives and raise the issue with her. Make sure you take a note of the name of the midwife who was negative and if possible write down verbatim what she said. I know it sounds a bit overboard but I can guarantee you that midwives and gp's wouldn't say half the stupid, non-evidence based things about homebirth to pregnant women if they thought their comments were going to filter back to senior staff.
Anyway - good luck. Be strong!