What A/V receiver should I buy?

Jonathan wants to upgrade his AV receiver and wants to know if the Onkyo 818 would be a good choice. Leo says he has two of them, and the 818 has some cool stuff including a powered HDMI port (called HML). He should always upgrade his firmware when he gets it home, too.

A new AV receiver is a nice way to upgrade a home theater. It will gives more flexibility and functionality.