Overkill? Certainly not. Keep in mind that a speakers biggest enemy is being run with too little power, or cheap amps that distort the signal. The M22's are rated at 200 watts, and the DTR 9.9 is rated at 145 watts, but in most recievers that only means 1 channel driven, not all 7. So you should be well within the speakers limits. The fact that you're looking at buying a reciever that costs more than your entire HT system is a bit unusual... but hey, whatever works for you bubba.
Monday is the day eh? Sweet, can't wait to hear your impressions!