I'm looking for a mini HiFi system. I've heard that the Denon DM31 is one of the best in its price range at the moment. Is this so? If not what could you recommend? Also I was wandering if I could use my Logitech Z-560's with the denon or any other system? I'm only going to use two speakers and the sub with my PC so I'll have two leaft over. Cheers.