A few years ago someone got married at the club and they had a string quartet play instead of a band. I found it very nice. They didn't play Metallica though. At least I don't think they did. I'm not very familiar with their music. Seems like I'd notice though.
I like Apocalyptica. I like cellos, generally. It may be the next instrument I learn to play. I hear it's very difficult, but I'm psyched on the sound of the thing.