My new setup

I am finishing up my theater room and am going with martin logan motion 12's up front with a motion C center. I was thinking about motion 4's for the back and am using a klipsch 12d for the sub. I am also planning on running the pioneer sc-1222 as the receiver. I really want to add a couple more speakers to finish out the 7.1 but what should I go with? I really don't want to spend another $500 for a couple more motion 4's. Anybody have any other ideas or suggestions? I am not opposed to throwing a couple in the ceiling, I just need to figure it all out before I wire and close it all up.

Anyone?

Ok, what about a set of Motion 10 floor standing speakers for the rear? They are down to $170 each and would someone recommend these over the motion 4's? I wasn't really thinking about and in-wall speakers but Audio Advisor has some pretty good deals on martin logan passage and ticket in-wall speakers. I'm just looking for some recommendations from anyone else here that has a martin logan system

Bump for at least one persons help