I was thinking that a tower similiar to a M40, but maybe an inch or so slimmer, and configured like a M22 would be a killer main. A little more bass extension but with similar detail and accuracy. I am not an audio expert and don't know if you would get the same kind of performance, but it sure sounds like a great idea. I would much prefer a sleek tower over a bookshelf and speaker stand. Anyone else had similiar thoughts?