We just installed a Denon DVD3910 on a Fujitsu 55" Plasma. The picture quality was unbelievable. We used the HDMI cables to connect to the TV. We set the HDMI output to 720p because that the Native res on the fuji plasma. There was a huge difference in picture quality that i noticed, but the average consumer probably would not be able to see the difference. Still not worth the cheese in my opinion.
By the way, we had two brand new HDMI Cables from M****** C**** bad right out of the box. Not bad for a $129 cable!