Andrew,
The system you're looking at is very similar to the one I am currently putting together...
Mains: Maggie 1.6QRs
Center: Maggie CC3
Side and Back Surrounds: Maggie MC1s
Subwoofer: Dual SVS PB10-ISDs or dual HSU STF-3s
I've heard an all Maggie audio/home theater system and I can honestly say that it was by far the most impressive, exciting, and lifelike home theater system that I have ever experienced. And believe me, I’ve listened to a lot of them; I used to sell this gear for a living. The dialogue on the Maggie system is crystal clear without being hyped or "in your face"... and the main action and surround sounds are so lifelike that my wife and I got goose bumps. Yes... I said my wife.
We looked at Polk, and Vienna Acoustics, and B&W, and Sonas Faber, and JBL, and Infinity, and Snell, and Definitive Technology, and M&K and many, many others. When we listened to the Maggies I just knew that she was going to say "no way you're putting those ‘2001 A Space Odyssey’ monolith things in our home theater"... but low and behold... she LOVED them! I wanted Maggies and had purposefully shown her as many other speakers as I possibly could before letting her hear the Maggies. Still I was afraid that she'd balk... instead, the moment she heard them her head started bobbing and her toes started tapping. Now she says they are the only speakers she'll allow me to buy. Woohoo!
In my opinion, if you like the Maggie sound, then you're not likely to find any box speaker that will satisfy. There just is no comparison (my opinion).
However, I would carefully listen to the MG-1.6QRs in a corner placement. Even fairly miniscule (one inch) movements can drastically change the sound and character of these magnificent speakers. I believe that they need to be out in the room and allowed to "breath" to be at their best... at least 3 feet from the back wall and 2 feet from the side wall.
If you simply can't manage this arrangement, then you might consider the MC1s for your main left and right fronts. The MC1 is designed to hang on the wall just like the MMGWs, but their larger, go lower (80 hz; perfect for handing off to the sub), and are a true two-way design with a quasi-ribbon tweeter element.
Personally, I can't think of a single other system that I'd rather have. Well, maybe those Wisdom Audio towers that run $40,000.00... but since I'm not Bill Gates I think I'll stick with the Maggies.
