Okay. I know this is one of the most debated topics out there. But I'll be buying a new receiver real soon that supports 7.1ch surround and so I'm looking to add some speakers. Now on to the question. Rear sides: dipoles? (this is the concensus right?) Rear centers: ????? THX now recommends direct radiating speakers. Is that the way to go or should I have dipoles all around. And 2 rear centers are the way to go right?