My roommate has an old laptop that we're going to use as a livingroom mp3 player and maybe for movies. Problem is the audio out is really noisy. Any decent USB soundcards that are cheaper than the Extigy or Audigy2? I've seen a ~$50 USB SBLive! box on Newegg and a $25 Turtle Beach thing. 5.1 would be nice, but isn't necessary.