Thanks everyone.
Another sub is not something I would have done, it's money that can go into new speakers. The room is 22' x 14', but because of other furniture my system has been relegated to the half of the room where the foyer provides entrance to the living room, with the stairs going up and down and a short wall (my house is a split level). I can stretch out a little into the space where the foyer and living room meet. I decided to bite the bullet and ordered a pair of Harbeth 30.2 XDs, which are actually coming tomorrow. Next purchase will be a replacement for my Amp, but I think that won't be for a while after the speakers, bathroom remodel, and the upcoming kitchen remodel. My dealer suggested Analysis Plus Silver (I not II) speaker cables, but I may just get my Cardas Neutral Reference bi wires reterminated unless someone grabs them fast on fleabay. Hopefully I can stack the bi wire spades on the terminals and have more time to do research.