Rather than buy new speakers and try to fit them into a room, I have decided to add on to my house. Room will be around 42 x 24 with 10 to 12 foot ceiling. Far short wall will have large screen tv, speakers, couches & chairs, etc. Room will also have pool table, bar and stools, card table, some cabinets. Anyone with design experience? I would like to eliminate as many acoustic problems as possible. I have an Onkyo 5009 that allows for high and wide 9.2 system. What Ascend speakers should I get? How many subs?