Rontech,
That sounds like a great setup.
I wouldn't worry about the power issue at all. 800 watts sounds like a lot of power, but
1. It'd only be for a split second, and
2. Better 'too much' power than 'not enough' power, as far as preventing damage goes.
Axioms are pretty rugged as far as how much power they can take, and their 'power ratings' are rather conservative- there was a link floating around a while ago about how the M80s were tested with 1200 watts/channel (that's continuous!) over a 24-hour period, IIRC. This is just a guess, but with a 200w/ch amp I think you'd drive it into clipping before you'd overload your m22s.
