Remember that the screen / display will have to be above the center speaker. That's pretty high if you run a M60 or M80 as center. And no, you do not want to run it horizontal. This is the reason I went with a pair of M22's for my center, to be able to have my screen at the proper height. I later found the center to be lacking, which is why I added the VP150 over the screen, in addition to the two M22's. I'm leaning towards an AT screen and a wall of speakers behind it for my next HT. It seams as if there is always some compromise that needs to be made with HT speaker selection. I'm not sure what the answer is, other than just being happy with whatever you have and to never open another thread on a forum filled with AV geeks who are never satisfied (yes, myself included).
My choice to have 7.1 over 5.1 has nothing to do with bragging rights. There are many discrete channel 7.1 movies out now, and it is becoming more popular all the time.
