We are putting in a 5.1 speaker system for our home. Main purpose is TV & movie watching. The wiring is done for the 4 inceiling speakers. The center speaker will not be in the ceiling. The room is 20 by 12' with the TV on one 20' wall and the chairs against the other. Can you give me some suggestions regarding what speakers to put in? We are not heavy duty audiophiles, but would like something nice.