Anyone happen to know if there is a difference in the types of DVI to HDMI cables?? Specifically, if I go to Radio Shack, BB or CC I'm going to be paying out in excess of $100 for a 3 foot cable, whereas I can get a cable for $7.00 on ebay. Is there really that much of a difference. Also, if anyone knows, is silver a better conductor than gold on the connections?? Thanks in advance!!!