I vote A. This would be ideal, as you could listen to 5.1 SACD or DVD-A material using your bookshelf rears instead of your QS surrounds. QS's are better for movies, direct radiators for music. If you were not anticipating listening to any multichannel music, then my vote is for (C): tower fronts, and 3 QS8's for a 6.1 system, since the rear information is mono anyway.

Mark

"Shoot, a fella could have a pretty good weekend in Vegas with all that stuff"