Thanks for the replies thus far.

To answer a few questions - I plan to use the system for both HT and 2 channel music listening. Probably 80% HT to start. However, music usage will likely increase over time.

The listening area is about 1500 cu feet or so. However it is open on two sides.

Whether with bookshelves or floorstanders I would be using a sub. Which sub depends in large part on the speakers I chose based on expense.