How can i combine these 2 "query_posts into one output?

Hi,
I think the best option is to combine query results after query was made.
E.g.

global $wp_query;

query_posts("showposts=$featured_num&cat=".get_cat_ID($featured_cat));
$_t1  = $wp_query->posts;

query_posts(array
('post_type' => 'page',
'orderby' => 'menu_order',
'order' => 'ASC',
'post__in' => (array) get_option('feat_pages'),
'showposts' => (int) $featured_num
)); 

$wp_query->posts = array_merge( $_t1, $wp_query->posts );
$wp_query->post_count = count($wp_query->posts);

// main loop here

I haven’t tested this, but code should do the trick.