As much as I hate Youtube, they do seem to be a repository for a wide variety of chorale, choir, church, and related music. Unfortunately, a quick glance shows that while some aren't that bad (link, link) some of them aren't that good. Some are really bad (link). One that is good is just a static graphic from a recording. (That's John McCain in the lower center, if you're wondering).

MADRIGALULAR EYE-CANDY UPDATE: link