re: Any Cruise experts?

First, call the cruise line itself for the cruise you are looking at and get a quote.
Then, look at crucon.com. The price of the cruise will be the same but they throw in extra things like pre-paid gratuities or onboard credit, depending on what sale they are having at the time.
Finally, go to Costcotravel.com and see what they offer for this cruise. They almost always offer “costco cash,” sometimes significant amounts, for their travel deals. We are staying at Portofino at universal this Christmas at a price $500 cheaper than the universal website and with $300 “costco cash” on a package I just booked through them. Plus, when you put it on your costco credit card, you get either 2 or 3 percent back as well.