Spam opinions please

I have several sites that are getting hit with form spam. I have the script set up to capture the IP address so I know from where they come. I found a short script that is supposed to stop these IP addresses from accessing the form page, it redirects the spammer to another page (I was going to redirect to a page that has lots of pop-ups, scantily clad men and offers of joy beyond imagination), but someone suggested I redirect to the Federal Trade Commission or perhpas the FBI. Any thoughts on the script and its effectivness? <?php $deny = array("111.111.111", "222.222.222", "333.333.333"); if (in_array ($_SERVER['REMOTE_ADDR'], $deny)) { header("location: http://www.google.com/"); exit(); } ?>Gary __________ Information from ESET Smart Security, version of virus signature database 4526 (20091020) __________ The message was checked by ESET Smart Security. http://www.eset.com