The Melting Pot is soooo goooood. And it's such a great place to go with friends. I've been several times and would recommend it for birthdays, New Years, special meals, whatever!
I love the Wisconsin Trio for the cheese fondue and the Lobster Indulgence for dinner. For dessert, I like Yin and Yang.
Be prepared to spend well over $100 for a couple though. It ain't cheap. That and you'll want to be sure you have a reservation as this place is always packed.