I can't speak about the Onkyo TX-NR515, but for some months I owned the Yamaha RX-V671, the immediate predecessor of the Yamaha RX-V673 and I thought that it was a very good unit, and I changed it for my present Yamaha RX-V1067 only because I wanted to drive a surround back speaker as well as front presence speakers.The Yamaha RX-V673 has enough HDMI inputs for the devices that you list, and has just won the 2012 Product of the Year, not just for AV receivers but in all categories, so it's good! I presume that you will have seen the review here http://www.whathifi.com/review/yamaha-rx-v673 and there is also this Australian review http://www.cnet.com.au/yamaha-rx-v673-339342030.htm . Buy and enjoy!