Multiple Complicated Loops

Hi guys

I have a div section at the top of a page, and then another one below, and I want the top one to display a list of 6 titles of all posts, except ones in category 13. Also, how do you end this loop.
I so far have for this div section:

<?php if (have_posts(3)) : ?>
<?php while (have_posts()) : the_post(); ?>
<a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a>
<?php endwhile; ?>

I also want the second div section to display a list of 10 posts (I have the code required to go in between the loop stuff)in all categories except in the featured category. Likewise, how should I go about ending this loop.
I so far have for this:

<?php if (have_posts()) : ?>
			<?php while (have_posts()) : the_post(); ?>
				<div class="post" id="post-<?php the_ID(); ?>">
					<div class="postwrapper">
						<a href="<?php the_permalink() ?>" rel="bookmark" title="Continue reading the rest of this entry »"><img src="<?php $key="thumbnail"; echo get_post_meta($post->ID, $key, true); ?>" alt="thumbnail" class="thumbnail" /></a>
						<h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>
						<div class="entry">
							<?php the_excerpt(); ?>
						</div>
					</div>
					<div class="postmetadata">
						<span class="thetime"><?php the_time('F jS, Y') ?></span>
						<span class="thecategory"><?php the_category(', ') ?></span>
						<?php edit_post_link('Edit', '<span class="editthispost">', '</span>'); ?>
						<span class="thecomments"><?php comments_popup_link('No Comments »', '1 Comment »', '% Comments »'); ?></span>
						<div class="readmore">
							<a href="<?php the_permalink() ?>" rel="bookmark" title="Continue reading the rest of this entry »">Read More</a>
						</div>
					</div>
				</div>

		<?php endwhile; ?>

				<div class="navigation">
					<div class="navleft"><?php next_posts_link('Older Entries') ?></div>
					<div class="navright"><?php previous_posts_link('Newer Entries') ?></div>
				</div>

	<?php else : ?>

		<h2 class="center">Not Found</h2>
		<p class="center">Sorry, but you are looking for something that isn't here.</p>
		<?php include (TEMPLATEPATH . "/searchform.php"); ?>

	<?php endif; ?>

Any help would be much appreciated

Kenneth