i was wondering if going to 7.1 would be worth the effort . i have an onkyo txsr507 which is 5.1 receiver that will do 7.1 with an external amp to power the 2 surround back channels . i found some wireless book shelf speakers from acoustic research that i thought would make it simple because i have power where the speakers would be placed . i really do not want to run wires over head or under the house just something i was thinking about . any suggestions would be great. http://www.bhphotovideo.com/c/product/637535-REG/Acoustic_Research_AW880_AW880_Wireless_Indoor_Stereo.html#specifications