I couldn't see any distinguishing differences between the areas. Perhaps one simple way would be to get the skin1/customer/main/featured.tpl and start and end with a custom div like so...
<div class="featured_items"> {*starting featured div *}
{* The featured.tpl content goes here untouched *}
</div> {* ending div at end of tpl *}
and in the main css file add a new featured_items class called from the new div (more or less a duplicate of TD.DialogBox but with a different bg colour)...
.featured_items TD.DialogBox {
background-color: #ff0000; /* demo colour red */
/* remaining class content */
}
this way only the featured items are affected and the product pages remain unscathed - hopefully