large file uploads - php.ini customization

When a user configures Drupal6 for file uploads larger than 8MB, merely reminding the user of the PHP maximum file upload size limit is not the best solution. The upload.module could prompt the user "Is it OK to modify your php.ini settings?" And then perform an automatic update of the appropriate variables, similar to what I have done manually as described in the following post.
http://drupal.org/node/113220#comment-2198174