the system only for watching DVD and play xbox360. here is the two choice 1:Oppo DV971H + Logitech Z5500= the advantage of this system is that the oppo dvd player have good PQ via DVI cable and support 720p. 2ENON DHT500= not sure that who has the best sound quaility between Logitech Z5500 and DHT500,and the DVD player of this system. THANKS!!!!!!!