All right, I found a way to do this with categories – and not even a plugin! Pretty easy. I’lk post that method..
<?php $recent = new WP_Query("cat=3&showposts=3"); while($recent->have_posts()) : $recent->the_post();?>
<li><a href="<?php the_permalink() ?>" rel="bookmark">
<?php the_title(); ?>
</a></li>
<?php endwhile; ?>
but I’m wondering if there’s any way to do this with tags? That would work better with another plugin I am using