Paginate a list of post titles on a page

This is probably a very simple fix, but I’m tearing my hair out at this point and need a boot in the right direction.

I have a page called “Memos” that I am using to display an unordered list of all posts with the category “memos”. This is going to be an archive of all Memos that are written in my company, with a new post being added for each memo. As you can imagine, this is going to be a VERY long list.

I’d like to implement pagination on this list and limit it to 20-30 items per page, but as I built ‘the loop’ from scratch on the page.php, I’m not sure how to get paging to work. I have done some searching and have come across several fairly helpful entries here on the support forums, but I must be missing something because its not working. Not sure if I need

Here is the code I have so far in page.php…

<div class="fl span-12">
    <?php if (have_posts()) : ?>
	<?php
	    $catID = 0;
	    if (is_page('memos')){
	    	$catID=5;
	    }
	    if ($catID) :
	    	$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
		query_posts("posts_per_page=20&category_name=memos&page=$page");?>
		<!-- The following HTML structure is necessary to keep the
		     styling of the 'Memos' page consist with the other pages -->
		<ul class="list-3 block">
		    <li class="i">
			<div class="clear">
			    <div class="pagebody">
			    <div class="pagetitle">Memos</div>
		            <div class="pagecontent">
				<ul>
				    <?php while (have_posts()) : the_post(); ?>
					<li>
					    <?php the_content('Read the rest of this entry &raquo;'); ?>
					</li>
				    <?php endwhile; ?>
				</ul>
			    </div>
			</div>
		    </div>
		</li>
	    </ul>
	<?php else : ?>
	    <ul class="list-3 block">
		<?php while (have_posts()) : the_post(); ?>
		    <li class="i">
		        <div class="title-0">
		        </div>
		        <div class="clear">
			    <?php the_content('Read the rest of this entry &raquo;'); ?>
		        </div>
		    </li>
	        <?php endwhile; ?>
	    </ul>
	<?php endif; ?>
    <?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; ?>
</div>

Notice that I have not defined any ‘next’ or ‘previous’ buttons or links. Out of everything that I have found, none of them mentioned needing them and many discussed WP’s “out of the box” pagination ability, so I am assuming WP will create that automatically if I can get the code correct.

Any and all help in this is greatly appreciated.
Thanks