I'm trying to use the search query along with an array of arguments to narrow down search results, but I'm failing horribly. This is what I have so far.

    $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;                
    $s_array = array(
        'post_type' => 'blog',
        'caller_get_posts' => 1, 
        'paged' => $paged, 
        'meta_query' => array(
            array(
                'key' => 'votes_percent',
                'value' => '50',
                'compare' => '>',
                'type' => 'numeric',
            )
        )
    );
    $s_query = http_build_query($s_array);
    $is_query = '&' . $s_query;
    $s_streaming = $query_string . $is_query;
    query_posts($s_streaming);

When echoing out $s_streaming I get

    s=test&category=wordpress&post_type=blog&caller_get_posts=1&paged=1&meta_query%5B0%5D%5Bkey%5D=votes_percent&meta_query%5B0%5D%5Bvalue%5D=50&meta_query%5B0%5D%5Bcompare%5D=%3E&meta_query%5B0%5D%5Btype%5D=numeric

If I remove the meta_query keys it works, so I'm guessing that is where my problem resides.

It works fine like this

    query_posts($s_array); //just using the array to filter

    query_posts($query_string); //just using the search query

I'm trying to build the string to query, because this fails.

    query_posts($query_string . $s_array); //using both

Can anyone point me in the right direction?