From what I can tell, you are looking to future-proof yourself to some extent as the kids grow up or your system expands. It looks like the Onkyo SR-674 will provide these capabilities. You should be able to hook up everything you listed to the receiver and then run one HDMI to your TV. This greatly simplifies wiring. Plus, it will handle the new HD games and an HD cable box when you upgrade that. The only thing it's missing, and it may not be important to you, is multi-channel pre-outs if you ever want to add external amplification. Otherwise, I could see the 674 being functional for a very long time with a great variety of sources.