New Setup help needed

Hi,

I'm getting a new home theater setup with a projector. I have one HDMI cable running from where the projector will be in the ceiling to the wall where I will be keeping my devices. My plan is get a surround sound receiver and plug in everything through the receiver.

What is the best low input lag receiver and projector I can get? Since the lag will be accumulated between the projector and the reciever I was wondering the input lag needs to be really low on each. Are their any receivers that just pass through the video through the HDMI port passivly? Of course, I want to get a receiver with good quality audio and a projector with good quality video.

Also, the place I'm moving into has a 6 speaker setup already installed. There are three in the front (left, right, center) and three in the back (left, right, center). What is the best way to wire a 7.1 channel receiver to 6 speakers?

What is the best projector screen to use? I was reading that some people prefer grey screens to increase contrast.

Right now I'm looking at Epson 8350 since it appears to have low input lag.

- Thanks!

Thanks for the link jnaqb. That was very helpful.

I did read in a bunch of places that the receiver can cause very bad input lag issues if you pass the HDMI cable through the receiver which is what I need to do since there is only one HDMI cable going from the wall to the projector and that will be connected to the receiver.

Has anyone tested the input lag of various receivers?

Due to the way the wiring is done there is only one HDMI cable going from the ceiling where the projector will be to the wall where the equipment will be. Therefore it is not practical for me to run another HDMI cable dedicated for the game console. How can I tell which receivers do not touch the video signal and just pass it through?