So, I currently have a Polk setup with RT 800i's for the mains, CS 400i for the center, and RT 35i's for the rears. I sold my receiver (Sony 333ES), because I plan to upgrade to separates. Since I have decided to upgrade, I thought that I should consider upgrading the speakers too. I want to get maximum system performance within a reasonable budget (diminishing returns and all that). Are there other speakers out there that are demonstrably superior to the Polks within a $2,000 price range? Perhaps Paradigms or B&Ws? I would prefer an 8 ohm impedance (nothing below 6) and a minium sensitivity of 89 dB. I'm not interested in speakers that are particularly "warm" or "bright," since I prefer everything in my system to be as transparent as possible. Real wood veneer like the Polks would be a nice bonus, as well.