I am going to replace my old Yamaha amp with either an Onkyo 607 or Denon 1910. After reading many reviews I am leaning towards the Onkyo. The only thing that concerns me is the fact the Onkyo can only upscale to 1080i against the Denons 1080p. Would this be a major issue for me currently running Sky HD, PS3, and Panasonic BD60 Bluray player thru Panasonic 46PZ81 1080p tv all via HDMI. I would also welcome any comments on these two amps.