3-ch amps vs. mono blocks vs. stereo amp + mono?

I am looking to add some power to my system which right now is being driven by an integra dtr 40.1. Initially I will continue to use that receiver as the processor but I want to add some power on the output side (200w or so).

I only have one system so it has to pull double duty for HT and music reproduction. So, what are the pros and cons of getting a 3-ch amp vs. 3 mono blocks or maybe a stereo amp plus a mono block for the center?

Thx