I am about to move into my new house and set up my living room. I plan to have a 56' Samsung DLP (5676, comes with 3 HDMI inputs). I also plan to order the Orb Audio speaker system (just their mod 2 speakers), I already have a SVS cylinder subwoofer. I am going to have a HD Cable box, Mac Mini, PS3, and a Xbox 360 hooked up to everything, but the mac mini and xbox do not need HDMI through the receiver, just the Tv. Therefore, the 2 HDMI inputs the 605 has will be fine. <p> I am just worried about sound and video quality. Will there be a big difference if I use the 605 instead of the 805? Any advice on this is appreciated. Thanks in advance!!