I'm a new member (and new to home theater) and this is my first post! We just had our house built and moved in about a month ago. The contractor ran RG59U cables from my A/V closet to the wall above the fireplace for my plasma. The total run is about 45'. Should I replace the cables with RG6? I've been hearing different opinions. I put gold RCA ends on the connectors and hooked it up to the plasma just to see how it looks. The image was impressive, but I'm wondering if it would be even better with RG6 cables. Also, I have 14ga (generic) wire ran from the A/V closet to my front towers. Is it worth it to change the wires to 12ga, or is it not worth the trouble? Here's my current set-up. Phillips 50PF9966 Plasma Definitive Technology BP7002 Towers Definitive Technology "Mythos 3" Center Channel Definitive Technology BPVX Surrounds Yamaha RXV 1400 Receiver Any help/suggestions would be greatly appreciated. Thanks!