"I'd like to get side speakers with a decent lower end to them, but that are still wall mountable." (tsrart)
Here's your problem with that thinking. You're going to have an unbalanced/non-accurate sound by placing lower bass up against your wall with those speakers! They'd have to be seroiusly EQ'd, and it's not really the way to do it. The bass modes all pile up on the walls/corners, and reinforce the bass waves. Also, the wavelenghths of bass that are that close to the wall will also be amplified beyond the rest of the frequency spectrum, causing you to be forced to bring the bass balance to those speakers down anyway, to bring it into spec with the rest of the mid/high's! It's better to put smaller monitors on the wall, and let powered subs elsewhere handle the bass in that situation. I say this from 20 years experience. Unless treated properly, those wall mounted speakers will "boom away", and not be flat within their frequency range, which is what's intended by the speaker maker and mixers themselves! Balance is the key, and proper setup is critical. I wouldn't!!!....