Vampires enjoy lots of perks: immortality, cool accents, and if you're Brad Pitt (the undead version), baby blues dreamy enough to turn Arnold Schwarzenegger into the fruitiest bottom this side of Key West. Like all lifestyles, however, Vampirism must have a few cons. It's easier to believe that immortality is attainable by drinking the blood of booger collecting, wannabe Anne Rice fatties, than…