Sort Featured Posts by Custom Field

[ashley3ee]

Is there a way to be able to sort the list of featured posts I have on the home page by a custom field, such as an expiration date? The name of the custom field is expiration-date, and I want it to sort by the value in ASC order.

Here is the code that is there now:

<?php $recent = new WP_Query("cat=".get_theme_mod('featured_top_left')."&showposts=".get_theme_mod('featured_top_left_num').); while($recent->have_posts()) : $recent->the_post(); ?>
				<?php if( get_post_meta($post->ID, "thumb", true) ): ?>
				<a href="<?php the_permalink() ?>" rel="bookmark"><img class="thumb" src="<?php bloginfo('template_directory'); ?>/tools/timthumb.php?src=<?php echo get_post_meta($post->ID, "thumb", $single = true); ?>&amp;h=<?php echo get_theme_mod('featured_top_left_thumb_height'); ?>&amp;w=<?php echo get_theme_mod('featured_top_left_thumb_width'); ?>&amp;zc=1" alt="<?php the_title(); ?>" /></a>	
				<?php else: ?>
				<?php endif; ?>					
                
				<strong><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></strong>
				<?php the_content_limit(90, ""); ?>
				
				<hr/>
				
				<?php endwhile; ?>
                
				<?php if(get_theme_mod('featured_top_left')) : ?>
				<strong><a href="<?php echo get_category_link(get_theme_mod('featured_top_left')); ?>" rel="bookmark"><?php _e("Read more posts from ", 'studiopress'); echo get_cat_name(get_theme_mod('featured_top_left')); ?></a></strong>
			
				<?php endif; ?>