News broke earlier today that Prince William is finally engaged to his longtime on-again, off-again girlfriend Kate Middleton. A royal wedding is set for spring or summer 2011. We've heard Kate is a cool girl, and she's definitely cute. But is she royalty material? If you were destined to be King, would you ask her to be your princess/queen? Check out 25 photos after the jump and Sound Off with your take on Kate Middleton.