I've always liked "Three Kings from Persian Lands Afar". It can be sung straight or with a choral behind it (usually one about King David or something). I think this is in the Oxford Book of Carols. I also like "Orana" by James somebody (being Aussie). Orana is an aboriginal word meaning "welcome" (don't know which dialect). This should be readily available as everyone sang it when I was at school (oh no, a while ago now!). Anyway, I have a collection of "alternative" carols, some of which I've heard other places and some of which I wrote myself in desperation... there are lots to "We Three Kings", "While Shepherds Watched", "Twelve Days of Christmas" and I even know one to Jingle Bells. I do like the alternative tune to O Little Town that Cliff Richard and Amy Grant have both done - I don't know what the tune's called but some of you may have heard it. (Don't shoot me!) About the only "commercial" song I've ever acquired a fondness for is Blue Christmas...