See if you can find 2 future members of the UC Men's Octet in this video from an AiR concert. AiR (Aritsts in Resonance) is a co-ed A Cappella group from Berkeley. The camera problems have to do with lighting issues. The music more than makes up for it.
A couple of hints: The future Octet dudes are the first soloist and the final soloist (speaking part), aaaaand, they also performed together in the same Octet (2003-2004).