<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class MY_Controller extends CI_Controller{

	private $data = array();
	private $load_template = TRUE;
	private $template = array( 'template' => 'template' );

	public function __construct()
	{
		parent::__construct();
	}

	public function __destruct()
	{

		if( $this->load_template )
		{
			$this->data['template'] = $this->template;
			$this->load->view( $this->template['template'] );
		}
	}

}

Output
Warning: include(application/errors/error_php.php) [function.include]: failed to open stream: No such file or directory in /Users/johnathanb/Dropbox/htdocs/CodeIgniter-Template/system/core/Exceptions.php on line 167

Warning: include() [function.include]: Failed opening 'application/errors/error_php.php' for inclusion (include_path='.:/Applications/MAMP/bin/php5.3/lib/php') in /Users/johnathanb/Dropbox/htdocs/CodeIgniter-Template/system/core/Exceptions.php on line 167

Warning: include(application/errors/error_php.php) [function.include]: failed to open stream: No such file or directory in /Users/johnathanb/Dropbox/htdocs/CodeIgniter-Template/system/core/Exceptions.php on line 167

Warning: include() [function.include]: Failed opening 'application/errors/error_php.php' for inclusion (include_path='.:/Applications/MAMP/bin/php5.3/lib/php') in /Users/johnathanb/Dropbox/htdocs/CodeIgniter-Template/system/core/Exceptions.php on line 167

Warning: include(application/errors/error_php.php) [function.include]: failed to open stream: No such file or directory in /Users/johnathanb/Dropbox/htdocs/CodeIgniter-Template/system/core/Exceptions.php on line 167

Warning: include() [function.include]: Failed opening 'application/errors/error_php.php' for inclusion (include_path='.:/Applications/MAMP/bin/php5.3/lib/php') in /Users/johnathanb/Dropbox/htdocs/CodeIgniter-Template/system/core/Exceptions.php on line 167