Satman,
Although opinions are what makes the forums interesting, I don't think the OP wished for anyone to flame his equipment. It may help to take a deep breath or count to 10 or something before replying.
newaudiophile,
As far as the audio is concerned you want to connect both the DVD player and cable box to your 2805 using digital connections. You have 2 digital coax and 5 digital optical (TosLink) inputs on the receiver, so you can pick which 2 you want to use.
The video can go a couple of ways; 1. run all video (in) to the 2805 with component cables and then run 1 component cable from the 2805 (out) to the TV. 2. Run the DVD player and cable box video (individually) to the TV using the DVI/HDMI connections.
Best of luck!