Drupal 6: Add a shortcut to "create node" in the Admin page for users that have the permission to create at least one type

/**
 * Implementation of hook_menu().
 */
function MODULENAME_menu(){
	return array(
		'admin/content/create' => array(
			'title' => 'Create',
			'description' => 'Create contents',
			'access callback' => 'menu_valid_path',
			'access arguments' => array(
				array('link_path' => 'node/add')
			),
			'page callback' => 'drupal_goto',
			'page arguments' => array('node/add'),
		)
	);
}