acd123,
My first question is why you would ceiling mount one Qs8, and wall mount the other? I'm guessing it has something to do with your room setup?
Even though they are very forgiving on placement, I still think you would want them at the same height if possible. Can you describe your situation.
The Qs8's come with a wall bracket. For a ceiling bracket, as the others have hinted, I got a bit creative and cheap. Just headed down to our local Menards Home Improvement store and found some shelf brackets with black plastic covers to hide the wires.
Another option would be to check out the omni mounts, they are fairly affordable.
