Phew, well that is a relief, just got my rear brakes done now and thankfully the hub is separate to the brake disc. It was rusted solid though so plenty of penetrative fluid and twatting with a rubber mallet was required to shift it.
I got the rear carriers off the near side easily enough, but the offside was a nightmare, spent 2 hours trying to get the bottom bolt off before I gave up. I actually invented new swear words in the process!
Because I could get the top bolt out I twatted the carrier to give me access to remove the disc.