A newbie with a speaker cable AWG question.

Thanks for your responses Ohlala, Stehno and Sdcampbell. Sdcampbell - You bring up important points. I guess when I asked about "overkill" I was trying to ask if it's possible to have too low of an impedance for a very short run of speaker cables. I understand that as you increase length of cable that issues like resistance and impedance become important. I guess my question is if you look at the various cables within any given speaker cable company's line, it seems that as the price goes up so does the cable thickness and "technologies" used. In my set up I only need 6 feet runs so are you saying I won't hear as much of an improvement the further up I go within a given line of products? Am I oversimplifying?

Hi Sdcampbell - thanks for the response. I'm getting a better grip on the concepts involved here. I have (and will continue) to search the forums for cable recommendations. I started this thread primarily to get a better understanding of cable AWG and its relation to length and monitor size. My budget is around $400. So far I'm considering used Cardas Cross in a single run, Cardas quadlink (double runs) or Acoustic Zen Epoch and Satori. I will also look into the Audience cable that Stehno and Eagle are recommending. If you have other recommendations I'm all ears. Thanks again!