gistfile1.txt

function my_page_template_redirect()
{
    if( is_front_page() && is_user_logged_in() )
    {
		
	   global $current_user;
     get_currentuserinfo();

	$url = add_query_arg( array(
    'firstName' => $current_user->user_firstname,
    'lastName' => $current_user->user_lastname,
), $url );

    	return $url;	//nope
	wp_redirect ($url);	//too many redirects...
		 
        exit();
    }
}
add_action( 'template_redirect', 'my_page_template_redirect' );