I am in the market for an entry level receiver. have narrowed my choices down. I am thinking about the: Onkyo SR-501 ($182) Yamaha RXV630 ($240) JVC RX8030V ($279) Dennon AVR-1603 ($269). I would appreciate your opinions on product vs price or info if you have seen it lower. I do not know much about receivers other than what I have read here. I know of 6ave and ecost, what other sites are out there with good prices, but that you can also trust. Thanks in advance for your help.