Don't get ripped off on HDMI Cables
Cnet has a nice article on the difference between expensive and cheap HDMI cables. Bottom line: according to CNET there is no difference. They are all the same.
I have always bought my HDMI cables from Monoprice.com. (FYI, I am not a monoprice.com affiliate) You can get a 6ft cable currently for $3.50. I've bought many of them and they all work great.
HDMI is a digital connection. If you are getting a picture that looks like a quality picture, then you are getting everything that you are supposed to be getting. All of the data is coming through.
Take Cnet's advice and don't get ripped off by spending $85 on an HDMI cable.