What ever you do, DO NOT BUY BOSE. It's shit quality and you're paying top dollar. Stick to good speaker brands like JBL or Energy. Check out a decent home theatre store and they can steer you in the right direction.

Niles is tip top stuff. I have a set of in ceiling rear surround speakers and they're awesome!

http://www.intellexual.net/bose.html A little info on Bose's product.