[2] => Array
    (
        [User] => Array
            (
                [id] => 3
                [firstname] => test
                [lastname] =>
                [email] =>
                [password] =>
                [created] => 2012-09-04 16:44:04
                [modified] => 2012-09-04 16:44:04
            )

        [Profile] => Array
            (
                [id] =>
                [skill] =>
                [user_id] =>
            )

    )

[2] => Array
    (
        [User] => Array
            (
                [id] => 3
                [firstname] => test
                [lastname] =>
                [email] =>
                [Profile] => Array
                      (
                     [id] =>
                     [skill] =>
                     [user_id] =>
                       )
            )


    )

$result = $this->User->find('first', array('conditions' => array('User.id' => 1)));
Set::insert($result, 'User.Profile', $result['Profile']);
uset($result['Profile']);