I am installing a 5.1 HT system to my new remodel room. I have 2 Setup in mind, can you help me to decide which setup i should use, or there are better way for placement. I will use Polk Audio RC80i for my Front Left/Right, and RC60i for Center, Real Left/Right. Since I heard Front left/right is the most important speaker. I will be using RCA AH16100SN 100 Ft. 16-Gauge Speaker Wire http://www.amazon.com/gp/product/B0029HHIDY/ref=oh_details_o03_s00_i00"]http://www.amazon.com/gp/product/B0029HHIDY/ref=oh_details_o03_s00_i0]Amazon.com: RCA AH16100SN 100 Ft. 16-Gauge Speaker Wire: Electronics Will these wire do fine to run in wall/ceiling? or i must get CL2 Rated In Wall/Ceiling wires which is much more expensive. Please help me on these questions. Thank you OR