My friend and his wife have decided they like will get the Athena .5 system (with S.1's for the front) and are looking for a good reciever in the $300-$400 range. They heard the speakers with a Yamaha HTR-5560 which was $379. They also had the Harmon Khardon AVR-125 for $350. How do these two compare, and are there any better receivers in this price range? Thanks.