I'm about to upgrade my receiver and am currently undecided between the Yamaha, Denon 3806 or Pioneer AX4AVi. I know they all offer HDMI switching but do they all offer upconversion to HDMI or just from component to HDMI or none at all. Also would I need to connect component out and HDMI out or will component signals work through an HDMI cable. Confused!! Also do I need to worry about firewire cable or will the HDMI 1.1 version take care of all the sound and video from my Pioneer 989 dvd player (not yet bought but will do so soon).