One of my all-time favorite Christmas albums is a various-artists compilation put together by Steve Vai called Merry Axemas: A Guitar Christmas. There is also a Merry Axemas, Vol. 2 which looks quite good too.
One of my favorite songs on Vol. 1 is The Drummer Boy by Alex Lifeson. I couldn't find a free sample or youtube of it, but here are some youtube copies I found of some of the others: