Sam c, there are a couple of recipes on this topic from last november:
viewtopic.php?f=13&t=15586
I've just started one too, but its my first and I have absolutely no idea if its going to work:
250g ginger, grated and bashed up (the amount of ginger people use seems to vary hugely! This seemed like a good start),
juice of a lemon,
450g sugar,
5cm bit of cinamon,
4 cloves,
2 tbsp cream of tartar
water to volume ( ~ 4 litres to start. I was planning to top up with more once I'd decided it wasn't going to end up all over the place. I might just leave it at that though)
Yeast (this was supposed to be a packet of kit yeast from my last beer, but then I realised I'd used it in a hideous attempt at cider. So it's bakers yeast. I'll be intrigued to see if that comes out ok)
Its been going a couple of days now. I'm thinking about getting it into some plastic bottles as I want it alcoholic, but not too dry. It started at 1055, so I recon somewhere after 1025 should be ok, then leave it another day in the bottles (checking pressure!) and then into the fridge.
Fingers crossed!