I am thinking about replacing my Bose Acoustimass VI surround system with a pair of floor standing Sapphire ST1B speakers. I already have an Athena 8" sub, and would probably buy Sapphire center and surrounds in the future. Any thoughts on the following: 1. Sapphire speakers in general? 2. Other floor standing speakers for the price ($599)? 3. Replacing a surround system with two speakers (i.e., am I moving backwards or is the speaker-quality upgrade worth it)? I listen to DVD-Audio/SACD and would like to hear a better, fuller sound (my Bose are definitely lacking). I think I would be happy with 2-channel if the sound is good enough. Thanks for your thoughts and comments.