If it's real village carols you want, Ian Russell is your man:

http://www.sgpublishing.co.uk/gm/vc/vcabout.html

There are CDs and books and all. And if anyone in the Cattrap was at Sidmouth this year for Christmas in August in the pub, with Ian Russell in his glory wasn't it great. "Cracking" in fact.

At a humbler level, I've a song I wrote myself which I like to sing around Christmas:

http://www.macgrath.freeserve.co.uk/Songlists/man%20with%20a%20mandolin.htm#Paper chains

(Sorry not to put inthe blue clicky thing, but I can't find the bit of paper I wrote out with the instructions, and if I don't use that, it always goes wrong)