Ha ha. Looks like I've got Paul beat today.
I would do this with jQuery's 'before' or 'after' functions, like so:
<script type="text/javascript">
$(document).ready(function(){
$('#SelectQ_div > .question_body .response_column > div:nth-child(1)')
.before('<div>AFC West</div>');
$('#SelectQ_div > .question_body .response_column > div:nth-child(6)')
.before('<br><div>NFC South</div>');
})
</script>
You can change the "nth-child" value to modify where to place the text in the list.