Just as devotees of foreign 'art films' and Hollywood classics have long enjoyed deluxe DVD editions of their favorite films released by The Criterion Collection, fans of horror, sci-fi, exploitation, and cult films are now being catered to, Criterion-style, by Elite Entertainment's new series of "Millennium Edition" DVD releases of such genre classics as Night of the Living Dead (1968), George Romero's debut feature about a marauding army of flesh-eating zombies, Stuart Gordon's Re-Animator (1985), an H.P. Lovecraft-inspired tale of a mad scientist who brings the dead back to li