Do they all do the same thing or are the more expensive component cords better. Where is the cheapest place to order a good cheap one. Also does it improve the picture a whole lot compared to just a regular yellow, white, red cables. I just got a new big screen and no nothing about this stuff.
A good cheap one...not really any such thing. With component cables, you get what you pay for. Id personally recommend a set of QED Silvers - about $200 for a 5 metre cable, but the picture quality is phenominal.