Sorry for the newbie question but here it is. Currently I am the proud owner of a 60" Grand WEGA™ SXRD™ Rear Projection HDTVspacerKDS-60A2000/ Toshiba HD-A1 DVD player and am going to be upgrading my receiver to either a Yamaha 1700, 2700 or Denon 2707 for HDMI capabilities. My question is since I will be having all my components going through my receiver then to TV are any other cables really necessary other than HDMI. My DVD player is HDMI out, Cable box is HDMI out, and receiver will have two inputs then 1 out to my TV. Is HDMI all I should be using for best picture and sound quality? Do I have any need to keep all of my component, S-Video, coaxial cables? Is HDMI the end all be all? Is there any benefit to using different cables for audio or video? Thanks in Advance!!