Don't forget the RX-A710. Unfortunately mine had HDCP and HDMI handshake problems and had to go back.
However this receiver is only $50 more than the RX-V671 and has a lot of performance features in build quality and amp design, over the 671.
Also there's the Denon AVR-2112ci but it is limited in component connection and doesn't even offer a basic recording loop for a Tivo, S-VHS VCR, DVD-Recorder, CD-Recorder or any type of recorder.
I just get a sour taste in my mouth after have 3 straight Defective Yamaha receivers in a row, RX-V596, RX-V2300, and the RX-A710. Of course I would not chance an Onkyo receiver at all. Even their website states their problems and how to send them in.
I don't trust many of them anymore. Yamaha, Onkyo or HK (which was always designed flawed).
People seem to have the best luck with Pioneer/Pioneer Elite, Sony/Sony ES, Denon, or Marantz.