I would be looking at something like these all have HDMI output/input. Since the PS3 internally decodes the audio then send it through HDMI to the reciever via PCM you don't need an expensive reciever that does the docoding internally. As for the speakers you can always upgrade.
http://www2.visions.ca/catalogue/cat...9;&menuLevel=1
http://www2.visions.ca/catalogue/cat...9;&menuLevel=1