basically i'm a college kid looking to setup a little home theater in my dorm room. right now i have an old sony tv with one set of a/v inputs, an xbox, and a gamecube and i have my pc pretty nearby. anyways i'm setting aside around $400 for a decent receiver/5.1 speaker setup and i have an audigy 2 on its way. and i just wanted to know if i could get everything from my tv to my consoles to my pc to be able to utilize the speakers. oh and what are some good options for a receiver and speakers with my price range?