If I had that price range to work with, I wouldn't settle for any other than electrostatic mains and surrounds
and a pair of quality subwoofers, using a AVR or pre-pro with Audyssey 32 and Bass Eq to set up the speakers.
Does your price range include carpet, window treatments, wall treatments, lighting/wiring and seating, a turn key pkg?
Or just the electronics? Room size? ...I'm jealous