I'm a little confused when it comes to anything dealing with audio. I have a turtle beach 7.1 sound card http://www.newegg.com/Product/Product.aspx?Item=N82E16829118109. My question is what type of surround sound should I get for playing games on my PC? Should I go with a home theater setup or should I go with something more along the lines of the logitech Z-5500? I want the best sound possible for gaming and I dont want to spend more than 400$ on this uprade. Any information would be helpful.