Personally, I like the last interation of the Paradigm in-walls. The speakers are mounted in a frame that is cast as one piece, from what I could tell. I worked with a friend that installed them in a 7.1 system all around. I can't recall the models and names, but could get that for you. They were mounted pretty securely to the sheet rock. He also had some "membrane" between the sheetrock and studs for sound proofing. I was really impressed with the sound.

Another option are the Maggies, if you don't need to wake the dead. The Maggies are excellent sounding speakers and can easily pass the SAT - "spouse acceptance test" if you are really nice around V-Day adn X-Mas. They are not in-walls, but I don't think there are any in-walls that sound better, at least that I have heard. Drive them with some good power, like an M200 for each!

Boston Acoustics makes a range of in-walls that all the so-called HT experts (also known as home builders!) are installing like mad. For my ears, the are not that great for a real theater sound, but are okay for the patio, garage, bathrooms, etc.

Hope this helps and I would like to hear what others think also.

PhatLac.