Hi Katie, I had a home birth with my 3rd and would thoroughly recommend it. If you've discussed it with your midwife, she will arrange to visit you at home at about 36weeks and will talk you through what you need, where you are planning on having baby, and what you need to do once labour starts.
I bought a couple of cheap shower curtains from tescos to protect the bed, which were ideal. I also packed a hospital bag just in case, but it also meant that I had all baby bits to hand and oh didn't have to search around for vests, nappies etc! I would also recommend having some oldish towels to hand to wrap baby in, oh passed the midwife a decent towel which we ended up having to throw away. Straws for your drinks as you will get thirsty and probably won't want to sit up and don't forget your camera!
IF I was ever to do it again (and thats a big IF) I would have a home birth, its a lovely experience and even though mine was extremely quick (my birth story is in the birth section) its very relaxing and less stressfull.
Good luck
Sam xx