M2s are mounted using an Omnimount....I had to turn the speakers 90 degrees from their intended orientation. That is to say, the side of the speaker is parallel to the ceiling. They sound great!
I'm at work now but i'll grab a picture or two when I get home and post tonight.

I love the black wall....the screen and its felt border appears to float in free space. The M60s do almost disappear, especially when the lights are out at movie time. My only fear with the ultra flat black that I used is dust and fingerprints over the long haul...if you so much as look at the black it leaves a smudge!