Hi! I will never be an aficionado as far as these things go, but a friend of a friend of a friend is going to jail and his mom is selling all his belongings off. He has a barely used Pioneer HTZ-830DV system for $200. I'm just wondering if this is considered a good investment. I know that Pioneer is generally considered a quality name. I am also interested in learning more about this "DTS" I keep hearing about when a new DVD comes out and people complain that it doesn't have a DTS track, so I want something DTS-capable. So... anyone think I should go for it?