You just don't have to go overboard with the video cables. I usually buy the cheapest ones I can find for the length desired with the best shielding I can find. Video signals are low voltage so the cabling does make more of a difference than for audio, much like interconnects. There is just no reason to spend hundreds of dollars for a cable that does the same thing a $20 one will do, without a big brand name stuck all over it.
For example, with my recent TV and DVD player purchase I bought a $79 12' HDMI cable and a $29 12' HDMI cable, I can see no difference in the PQ or hear a difference in the audio between the 2, so I took the more expensive one back.