Just a heads up for anyone looking for Polk Audio RC80i in walls. There's a seller on eBay offering a great price with reasonable shipping and discounted multiples. Throw in the Microsoft Live 25% discount and they're not much more than the Monoprice ones (given Monoprice high shipping for speakers).

Search for "New Polk Audio RC80I In Wall In Ceiling Speakers Pair"

Regards,
Scott