I have a 200 sq. ft. family room and would like to put a home theatre system in it. I am considering the m60's. I am not sure if I should go with the qs4's or qs8's or the center 100 or 150 and have not even begun exploring the subs yet. I would also like to know if the sony str-de445 receiver with 80 watt per channel is enough to power my speakers without "clipping" occuring?