Add menu and pages automatically on registration multisite?

Thanks for you reply Ipstenu,
yes this plugin did allot for default BUT cant set default pages on new blog creation.

i have tried this hook

add_action('wpmu_activate_blog','my_default_pages');
function my_default_pages(){
    $pages_to_create = array('About','Services','Tier Services','Contact');
foreach($pages_to_create as $new_page_title){

            // Create post object
            $my_post = array();
            $my_post['post_title'] = $new_page_title;
            $my_post['post_content'] = 'This is my '.$new_page_title.' page.';
            $my_post['post_status'] = 'publish';
            $my_post['post_type'] = 'page';

            // Insert the post into the database
            $result = wp_insert_post( $my_post );

        }
}

it create pages but not in new blogs but in existing blog where we register.

Any idea how to accomplish this?

@shane: any for free??
I just want to add pages only ..??

anyone help any idea how to do this?

woops!! you saved me. Thanks allot Mika. 🙂
Though it adds pages but of those authors from which we copied but i solve this to work like what i wanted with some other plugin user role editor.

Thanks again for your help.