Thanks for the replies everyone!
@HM- I'm getting married on the cruise. Although we haven't booked yet for our October 2015 wedding, the Disney Dream is already on the top of our list!
@mrgame101-Yes, we're also leaning towards to 20-30 people. Great to know it was seamless given the fact that you didn't spend too much!
@lanejudy- Thanks for the kind words. Our budget is actually around $ 3K (blushes) well actually, around $ 4K given that we could still save up on the months to come.