Too many Cables??

Firstly, let me address audio cables. Optical audio is the same (essentially) as a coaxial digital audio cable, just in a different form. Since you just purchased a Bluray player, you'll see an HDMI out on the rear. This is a high definition video and audio cable rolled into one (however it looks like your receiver does not support this). I would recommend running an HDMI cable from the Bluray player right to the TV, then run an optical audio cable (or coaxial digital) from the TV to the receiver. This will give you the best picture on your TV, and the best available sound through your receiver.

Depending on your DVD player and Bluray player, you might want to consider using just the Bluray player for DVD's and Bluray discs. If your plasma supports 1080p (or really anything better than 480i), you would most likely get a better picture out of DVD's since the Bluray player will upconvert the video to the better signal (of course this depends on your exact model of Bluray player). This will help to eliminate some cabling also.

Other than that, you're not going to eliminate much more cabling. If you really want to get tricky with it, pick up some split loom wire management and wrap them up with that. Be sure to run the power and signal wires separately though! Best of luck, and hope this has helped.

i have the pioneer htp 2900 and i cant get both the tv and the dvd player to work its one or the other but not both.please help