Language defines in admin

Hi everybody, I have a client that would like to make changes to a few language file defines on a regular basis, but isn't comfortable with a text editor/ftp and working directly in the files. Is there an easy way to add an ability to edit any of that from the admin, or will I need to add those defines to the db and add some config options for them? Thanks in advance for any help. Adding them to the db isn't a problem for me, but I don't want to reinvent the wheel if someone has an easier way.

Sure. Admin/Define Pages Editor. There your customer can change all the text he/she wants on any page without messing anything up.

Oops. Sorry. That's Admin/tools/Define Pages Editor

Thanks for your reply. I probably should have been more specific, though. What they want to edit is the title and page header for the featured products page.

Line #22 : define('NAVBAR_TITLE', 'Featured Products');
Line #23 : define('HEADING_TITLE', 'Featured Products');

...in /includes/languages/english/featured_products.php

They want to change them out seasonally (Christmas, Mother's Day, etc.).