Flying South For The Winter?

So, as some of you may know....I and my boyfriend have considered going to WDW for Christmas! I'm so excited! I would like some advice? Please share your experience.  I can only imagine that the magic of Disney is times 10!! So please.  Just give me a word of the wise... even if not.. please.. anything you want to share.. even if it's not about Christmas, I just need someone to talk Disney about!! =]]