I went ahead and purchased the M22s. Thanks guys.

I won't put them on the side, but it seems you think angled down is okay - which will work well enough.

It looks like I won't be using a crossover at all, as my receiver doesn't support the sub on the B channel. The sub isn't "bad" (I'm never unnaturally conscious of the sub), which is a good thing; it's just not that great. The satellites that came with it *are* really bad though.

I was proposing 90/100 because that's where the freq resp graph showed the rolloff for the M22. As it works out, my receiver recommends 100hz for this size speaker 4-5.5. My receiver is a few years old and doesn't have an auto calibrate.