Problem with showposts

Hello all,

I am running two loops because I have some wacky CSS. In any case, there is something weird happening with my code. I need the first loop to show three unique posts and then the final loop to show just one unique post from the same category. It’s like I need some sort of limiter on the second loop. Here’s what I have:

<?php $my_query = new WP_Query('category_name=News&showposts=4');
  while ($my_query->have_posts()) : $my_query->the_post();
  $do_not_duplicate[] = $post->ID ?>

    <!-- Do stuff... -->
  <?php endwhile; ?>

    <!-- Do other stuff... -->
<?php if (have_posts()) : while (have_posts()) : the_post();
 if (in_array($post->ID, $do_not_duplicate)) continue;
 update_post_caches($posts); ?>
   <!-- Do stuff... -->
  <?php endwhile; endif; ?>

Thanks!