If a receiver doesn't do HDMI with audio, what does it do it with then? Is there a big quality difference between HDMI and non-HDMI? I plan on using receivers with 1080p HDMI video, but will have to use different cables for the audio if I don't do audio too. Does having a receiver with HDMI audio make a huge difference? What are examples of complete theater systems that have speakers and receivers that do HDMI audio and video?
