your setup sounds like you work for Circuit City... or buy there at least. anyway, i would be cautious to ever push 200 watts to the rears (not that that will happen anyway, but be aware of it). all channel stereo and modes like that would deliver more power to the rears, so if you get an amp with 200watts per, just dont crank it up all the way. other than that the other speakers will surely benefit from the "better" power.