I would add the Audioquest line for your audition , I like the AQ better than the Monster. Have ot seen the Kimber , but they do make good products . I have a 67 inch DLP , and I would agree , differences are slight , mainly with depth of picture , to me personally that means alot. I have compared them to cheaper cables. Cheaper cables do a good job, but I can tell the difference . In general you want a touch of silver {silver coated copper is fine} , it gives the video signal more zip . Good Luck !
