Creating a Megadropdown with get_pages and get_categories

Hi

Im trying to build a customizable mega drop down (example) with get_pages and get_categories

Does anybody have a good solution for controling the depth for get_pages and get_categories?

Help would be greatly apprechiated.

The reason im not using list_pages / cats /wp_menu etc is that I want to be able to control the output to do things like top a menu with the category discription.

Pages:
Parents work the way i want. However

$subpages = get_pages('child_of='. $page->ID);
foreach ($subpages as $subpage);

Only gives me the lowest level (grandchildren).
Is there someway to set the depth?

Categories is quite simualar exept here i get both children and grandchilden.

<ul id="topnav">

	<li><a href="<?php echo get_option('home'); ?>/" class="on">Home</a></li>

	<?php // Create page navigation with supages in a contatiner 

		$pages = get_pages( 'child_of=0&parent=0');
		$pageID = $page->ID;

		foreach($pages as $page) {

			$subpages = get_pages('child_of='. $page->ID);
			if (count($subpages)>0){ // If the subpage has children give it the class hasChild and don´t close the LI ?>

				<li class="hasChild"><a href="<?php echo get_page_link($page->ID) ?>"><?php echo $page->post_title ?></a>

			<?php } else {  // If the page does´nt have any childen. ?>

			<li><a href="<?php echo get_page_link($page->ID) ?>"><?php echo $page->post_title ?></a></li>

			<?php } //end else ?>

				<?php // If has subpages

					if (count($subpages)>0){ 

					echo "<div class='sub'><ul>";

					// Generate subpages in sublevel - !!! THIS RETURNS ONLY THE LOWEST LEVEL PAGE !/%#&%!

					foreach ($subpages as $subpage);{?>

					<li><a href="<?php echo get_page_link($subpage->ID) ?>"><?php echo $subpage->post_title ?></a></li>

					<?php }
					//end foreach subpage ?>

					<?php echo "</ul></div></li>";
					// Close the Child UL DIV and parent LI ?>

				<?php }  //end if ?>

		<?php } //end foreach ?>

 	<?php // Create category navigation with posts for each subcat

		$categories = get_categories();

		$catID = $cat->cat_ID;

		foreach ($categories as $cat) {

			if($cat->category_parent == 0){ //If is a top level category

				$subcategories = get_categories('child_of='. $cat->cat_ID);
				if (count($subcategories)>0){ ?>

					<li class="haschild"><a href="<?php echo get_category_link( $cat->cat_ID); ?>"><?php echo $cat->name; ?></a>

					<?php } /* end if has subcats */

			 	else { // else; does not have childen ?>

					<li><a href="<?php echo get_category_link( $cat->cat_ID); ?>"><?php echo $cat->name; ?></a></li>

				<?php } //end else ?>

			<?php // Get the subcats !!! THIS RETURNS ALL DECENDING LEVELS. 

				$subcategories = get_categories('child_of='. $cat->cat_ID);

				if (count($subcategories)>0){

					echo "<div class='sub'>";

					foreach ($subcategories as $scat) { ?>

		 		<ul>

		 		<li><h2><a href="<?php echo get_category_link( $scat->cat_ID); ?>"><?php echo $scat->name; ?></a></h2></li>

		 			<?php
		 			query_posts('cat='.$cat->cat_ID); // Get posts from that category.

		 			if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>

		 			<li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>

		 		<?php endwhile; endif;  //end foreach subcat ?>

		 		<?php
		 		echo "</ul>";
		 		 }
		 		echo "</div> </li>"; // Close the Child UL DIV and parent LI
		 		}	//endif has subcats ?>

			<?php } //end if parent ?>

		<?php } //end foreach ?>

</ul> <!-- topnav -->