Over at the Straight Dope message board, people are doing other people doing Lord of the Rings. Some wonderful parodies, some not-so. There's a Terry Pratchett and me in Good Omens mode one that's both accurate and funny, which I was tempted to repost here, but then decided not to, partly because if i don't have the author's permission, but mostly because I put it up here it would probably be attributed to me as people copied it, which would be unfair to the real author, whoever he or she is.
It's on page 7 of the parodies, though. You can't miss it.