I have the php code working to redirect correctly, but have run into a obstacle I don't know how to resolve....

The is the incoming URL, or one of them...

http://fcdev.premasolutions.com/alice-in-wonderland-movie-deluxe-alice-adult-costume.html

I have tried to intercept it but just created a loop. The handler I wrote is index_loader.php.

location ~ \.html/ { ## Forward
rewrite ^(.*)/ index_loader.php?source_url=$1 last;
}

location @handler { ## Magento uses a common front handler
rewrite / /index.php;
}

location ~ \.php/ { ## Forward paths like /js/index.php/x.js to relevant handler
rewrite ^(.*\.php)/ $1 last;
}

How do I go about redirecting all .html traffic to the new handler without interfering with the Magento front controller?

Thanks again for everyone's help!