This is my second post here- I am new to this forum. You guys know so much!! Which surround sound system should I get my 17 year old son? I see 2 at best buy-the pioneer and the insignia. This would be for our tv that he uses to play his 360. We got the Insginia HD tube tv last year. Are any of these good, do I need anything else to go with them? I am tech dumb so know nothing about this stuff. Thanks for your help!