Alright I went thru with it and returned the Acoustimass and just got my Polk set-up on Wednesday. All I can say is the Acoustimass setup seems sad and pathetic compared to what I have now! Wow what a joke ha ha! Thank you everyone for the tips, this is the sound I've been looking for.
Got a couple quick questions though, heres my current setup:
Fronts: Polk M60
Center: Polk CS2
Rears: Polk M40
Sub: Polk 505
Should I set the speakers to LARGE or FULL? They're on small...