Hi Im new to the whole home theatre thing...but I found these "Logitech Z-5500"
You can check it out here http://www.logitech.com/index.cfm/products/details/US/EN,CRID=2,CONTENTID=9486
But my question is how do I make them work on my TV and my Xbox 360 and stuff? And what cables or things would I need thanks!