My wife and I usually do not go the party route. I have never been on any ship were you could not find some nice quiet place to relax. If you want to party you can always find one, if not just relax.
I am with Cruise Fanatic, give your local TA a chance to help here. People are always telling me the "best prices" are on the net. My TA has always got us the best price and great service.