I may have said it before, but I'll say it again.  Iona does a version of "When I Survey the Wondrous Cross" that is just awesome.  The words are traditional, but they've composed their own music.

It's on the album Journey Into the Morn from 1995.

Christian readers of this blog might want to check them out.  Especially if you're like me and can't stomach Jesus-pop, or contemporary Christian, or whatever it's called.