I currently have a onkyo sr-500 , 2 Sony ss mb100h speakers, 2 Sony ss mb 150h speakers , a Sony sa wm 20 subwoofer and a polk center speaker csi-20 (04208) . The onkyo has gone out so i am wanting to replace it . What is a good receiver around 400 dollars ? and also , are the speakers i have any good or should i look into maybe replacing them also? I have a hitachi 60 inch hd tv, I will also be replacing my dvd player also. Im sorry for all the questions at once but i am trying to get some good advice before i buy this time.