Help Finding The Right Receiver To Suit My Needs

[Aidenag]

I am going to be finally adding a sound system to my big screen, and to be fully honest, do not know too much about the newer home audio technologies. That said, i am looking for receiver that can handle 7.1 speaker setup that would have nothing more powerful than say Polk Monitor 70's. I would like it to have the option to add an amp down the road, and want it to be able to give me the full audio experience that bd's offer. If there is anything else i should be considering when choosing a receiver, i would love to hear about that as well. As for budget, i would prefer to keep it under $500.