Other than concerns about adequate power, you could also save some $ by looking for a pair of the older 3.3's or 2.6's, both of featured the true ribbon tweeter like on the current 3.6 or the previous 3.5 (not employed on the discontinued 2.7 or current 1.6), but at a lower cost than those typically go for. I agree about the need for real estate behind the speakers, but feel that they're actually not that sensitive to closer side-wall proximity. One good thing about Maggie's, though, is that they're relatively easy to move, so you can mark their optimum floor placement with a little tape or something, move them back out of the way when you're not listening, and bring them out only when you are.
