Exclude pages greater than X

Hi, I have top nav for my site with set pages that fill the area. However, I want to have additional pages listed on my sidebar. I am currently using:

<?php wp_list_pages('sort_column=menu_order&exclude=74,75&depth=1&title_li='); ?>

However, I would LOVE to be able to exclude any page with an ID greater than say 24. That way I would not have to edit my header code every time I add a page to the sidebar.

Anybody have any ideas? Thanks in advance!