Adding a second custom taxonomy to a custom post type (both shown in its table)?

I use the following in my filter hook manage_edit-<post-type>_columns

add_filter( 'manage_edit-visitor_columns', array( &$this, '_wp_filter_visitor_columns' ) );

public function _wp_filter_visitor_columns( $columns )
{
    $columns = array(
            'cb' => '<input type="checkbox" />',
            'title' => 'Name',
            'type' => 'Type',
            //'state' => 'Current State',
            'id' => 'Visitor ID',
            'acct' => 'Using Account',
        );

    return $columns;
}

And to filter the column view, I use the following:

add_action( 'manage_posts_custom_column', array( &$this, '_wp_filter_visitor_column_view' ) );

public function _wp_filter_visitor_column_view( $column )
{
    global $post;
    if ( $column == "type" )
    {
        //$terms = get_the_term_list( $post->ID, 'v_types', '', ', ', '' );
        //echo strip_tags( $terms );

        $terms = wp_get_object_terms( $post->ID, 'v_types' );
        echo $terms[0]->name;
    }
    elseif ( $column == "state" OR $column == "workstation" )
    {
        $workstation = get_post_meta( $post->ID, 'v_workstation', true );
        if ( $column == "workstation" ) echo $workstation;
        elseif ( $column == "state" ) echo 'Not coded....';
    }
    elseif ( $column == "id" )
    {
        echo get_post_meta( $post->ID, 'v_id', true );
    }
    elseif ( $column == "acct" )
    {
        $terms = wp_get_object_terms( $post->ID, 'v_accounts' );
        echo $terms[0]->name;
    }
}

I hope this helps you.