I don't like to give too much advice on AT, but I'd suggest some of the other manu's that have been mentioned, unless you particularly like Kenwood's sound. (That being said, if they still use similar designs as in the past, their Sovereigns had great audio characteristics) Kenwood used to make some good stuff but have really shrunk in the marketplace these last few years after spreading themselves too thin...I just don't see them keeping pace with the Onkyos, Denons, Yamahas and H/Ks.
New...I'd say to audition a receiver if you can, but more than likely, look elsewhere.