I've been very happy with my Panasonic RP91 for over two years. I am thinking about getting a universal player for the occasional 5.1 hi-rez playback. My primary reason to upgrade would be improved progressive scan performance for DVDs (independent of scaling abilities). With some limited dvd-a playback on the rp91, setting all my speakers to large seems fine (my mains are full range, center can do ~ 40hz, and rears about ~ 50hz). The Denon 2900 is certainly an option. I am also considering the Yamaha 2300 and Onkyo 800....are these two players related in anyway? Which player, out of these three, would have the best video performance?