I just got the Denon 1707, which is totally fine for my needs. Got mine brand new off evil-bay and saved 75-100 bucks over the big box places. I also got the Denon 1730 DVD player, since both my Sony receiver and DVD went out within 2 weeks of each other. Everywhere I shopped said Sony has gone down the toilet.
I am using all component for video and digital optical for audio. The Denon auto senses the signals and know which unit the signal is coming from and tells me on the display
Even the RCA inputs for my old VCR run to the TV over component, so I no longer have to change video inputs on my tv, only the one component conenction.