i own the marantz sr5000, the updated models called sr5200. it's a step up from the sr4200, and i've been very happy with it. marantz makes a real reliable receiver. hifi.com has a lot of affordable receiver. you can compare prices and probably find them for sale locally.
i've been interested in the outlaw 1050 (outlawaudio.com) $500. it's got great reviews and goodsound.com recommends it along with the axiom m3ti.