Over at The Secret Machines' web site this morning, you can listen to Brandon Curtis' pretty haunting (and borderline disturbing) take on "Silent Night". It's worth a listen, if for no other reason than the fact that it's a different from most interpretations.
And who knows? You might like it. If so, you can go the next step and actually purchase the song (at a price you name) by making a donation to Safe Horizon. Ah, the spirit of giving. --Pete Freedman