If you don't go with SVS(Sonic Boom), you could also try
Audio Visual (AVU) for a Paradigm DSP3400 within that price range. My room is smaller than yours(around 2100 cft) but the 3400 works well for HT and music at a reasonable price...I paid $700.00 after a little "negotiating". The 3400 uses a 14" driver, the 3200 uses a 12" and is cheaper still while rated at the same power (300 w sustained 900w pk). I believe I was quoted about $550 on the DSP3200 a few months back. Remember that the prices are always negotiable in walk-in stores.
You could get an EP350 through the Factory Outlet for $700 and change as well if you don't mind waiting 3-4 wks.
