Thanks for the help guys -- the problem I have is the room arrangement -- its a small den with La Scala's on the fronts and five 200 watt channels this puppy is going to be so loud you'll need earmuffs. The RC64 is a perfect fit underneath my Samsung 52 inch -- to get a Cornwall in as the center I'd have to get a carpenter in to add a strong shelf over the top of the TV (hmmm, maybe this IS doable). I'm afraid it may look awkward. The rears are going to have to be placed sideways as there is no room.
I will have to think this over -- just how BAD can an RC64 sound anyways there may be some pitch differences but its primarly voices, right?