How to get category posts under first post?

I have this code in my index file:

<?php $my_query = new WP_Query('category_name=photos&amp;showposts=1');
  while ($my_query->have_posts()) : $my_query->the_post();
  $do_not_duplicate = $post->ID;?>

<div id="featuredphoto">
<?php echo do_shortcode('[gallery]'); ?>
<h2>&raquo; <?php the_title(); ?></h2>
<div class="photoentry">
<?php the_excerpt(); ?>
</div>
</div>

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

 <?php if ( in_category('41') ) { ?>

<div id="gallerypost">
<?php echo do_shortcode('[gallery]'); ?>
<h2>&raquo; <?php the_title(); ?></h2>
<div class="photoentry">
<?php the_excerpt(); ?>
</div>
</div>

 <div class="clear"> </div>

 <?php } else { ?>

 <!-- If the post is in the category we want to exclude, we simply pass to the next post. -->

	<?php $custom_fields = get_post_custom(); //custom fields ?>

	<?php if (isset($custom_fields["BX_post_type"]) &amp;&amp; $custom_fields["BX_post_type"][0] == "mini") { ?>

	<hr class="low" />

	<div class="minientry">

		<p>
		<a href="<?php the_permalink(); ?>" title="Permalink"><?php the_time('M j, \'y') ?></a> &raquo; <?php echo BX_remove_p($post->post_content); ?>
		<?php comments_popup_link('No Comments', '1 Comment', '% Comments', 'commentlink'); ?>
   		</p>

	</div>

	<hr class="low" />

	<?php } else { ?>

	<div class="entry">

		<h2><a href="<?php the_permalink() ?>" title="Permalink"><?php the_title(); ?></a></h2>

<?php the_content('Read More &raquo;'); ?>

    <p class="post-tags">
      <?php if (function_exists('the_tags')) the_tags('Tags: ', ', ', '<br />'); ?>
    </p>

		<p class="info"><?php if ($post->post_excerpt != "") { ?><a href="<?php the_permalink() ?>" class="more">Continue Reading</a><?php } ?>
   		<?php comments_popup_link('Add comment', '1 comment', '% comments', 'commentlink', ''); ?>
   		<em class="date"><?php the_time('F jS, Y') ?><!-- at <?php the_time('h:ia')  ?>--></em>
   		<!--<em class="author"><?php the_author(); ?></em>-->
   		<?php edit_post_link('Edit','<span class="editlink">','</span>'); ?>
   		</p>

	</div>

<!--
<?php trackback_rdf(); ?>
-->

	<?php } ?>

 <?php } ?>

<?php endwhile; ?>

	<p><!-- this is ugly -->
	<span class="next"><?php previous_posts_link('Next Posts') ?></span>
	<span class="previous"><?php next_posts_link('Previous Posts') ?></span>
	</p>

<?php else : ?>

	<h2>Not Found</h2>
	<p>Sorry, but you are looking for something that isn't here.</p>

<?php endif; ?>

and i wanna get 2 different category posts to show up under the first post then have the rest of the posts go as normal under that. how can i do it?