If you wait, you will be disappointed when you find there aren't any good deals left on the receivers. I found a really good deal on a used
Yamaha 663 (sells for $400 plus shipping or more generally new). I am a member over there and found it while looking around. If the Marantz isn't good enough, the 663 is even better since it has pre-outs in case you want to purchase a separate amplifier.