My system transistions little by little every few years. After moving from a really small living room (with a 7 foot ceiling no less) I decided I wanted a room that was not only for entertaining and music but for some good movie watching.
The room that was built when the addition onto the house was decently massive but put a major strain on the Tag Amp which meant a new amp. The Anthem helped smooth the sound out and added a lot of necessary power for music.
On the movie side I wasted money on trying to buy another amp and wanting to sell the Tag amp (dumb move!) and then decided to keep it and get rid of the one that was just bought.
Whats not in the list (because I can't figure out where they are):
Scandyna Minipod speakers for the rear. They're quite nice speakers and good for ambient noise during movies (they're not bad looking either)
B&W Center Channel: this is a rather old model but still one that I like a lot.
Monster Cable Power Conditioner: this is the HTS5100 model.