The more I read about interconnects, the more confused I get. I have most of my components connected with basic low end cables, like Dayton or Radio Shack Gold. I'm thinking about spending some money on cables, so I want to make a priority list of which ones are worth replacing and which are good enough. My system consists of a Denon AVR-3803, Denon 2910 DVD player, Scientific Atlanta 8300HD STB, Panasonic TY-50PHD8UK commercial plasma display and Axiom speakers. I only use the AVR for audio. All the video goes directly into the monitor (HDMI for DVD, component for STB). My priority is HDTV and DVD movies, with music secondary, although I've been buying DVD-As lately and really like the sound quality. Is it just upgrad-itis or will there be some benefit to better cables? How much is enough to spend? Will I notice a difference between a $20 vs. $75 vs. $250+? I need help!