BY MARK
SCHWED

You'd think Kristin Davis would have everything her heart desires. She stars on a hit show, HBO's Sex and the City, and has the lead in the ABC Family film Three Days (December 9), about a guy (Reed Diamond) so busy with work that he neglects his wife (Davis). But ask her what she wants for Christmas and there's no hesitation: "I'd like to fall in love. It's been awhile." And she wouldn't mind if it happened by the holidays. "Life is short," she says. "That's what this movie is about: people and love and connection and what's really important in life."