I, too, was once trying to decide between the m22s and the m40s. In fact, a
lot of
people have
asked that very
question. Some have even asked
why no one mentions the m40s or m50s much.
I recommend perusing the above links. This discussion has taken place in great detail quite a few times.
I went with the m22s. I think that -- since you already have a sub -- I would recommend that you do the same. But it really comes down to whether you prefer the laid-back sound of the m40s, in which case you should, naturally, choose those.
