1st Uploaded image as thumbnail in post/frontpage

Hello,

is there a way or a plugin around to display a auto-generated thumbnail of an “uploaded” image within a post on the frontpage? so all without the custom fields magic!

such as:

<h2>Title</h2>
<div class="entry">
<?php auto_generated_thumbnail_of_first_image_in_original_article(); ?>
<?php the_content('Read the rest of this entry &raquo;'); ?>
</div>

TiA