I think I'm going to go with the Snells - thanks a ton for pointing those out!
Now the big question is: How many do I need and where do I put them? Can I get away with just two speakers at positions 2 and 4, 4 speakers at 1, 3, 5, and 6, or some other combination?
Given the fact that these are really just filling in background music in conversational areas and mono will be fine, I'm going to try just two speakers at 2 and 4. We're only going to be in this house for 4 years and I wouldn't want to leave 4 of the Snells when we move.
Thanks for all the help!