New Media Uploader, restrict writer to view own media

I’m looking to do something similar, you could piece together a few items

<snippet from here: http://wordpress.stackexchange.com/questions/76771/how-can-i-hide-media-library-images-from-general-users&gt;

function remove_medialibrary_tab($tabs) {
    if ( !current_user_can( 'update_core' ) ) {
        unset($tabs['library']);
        return $tabs;
    }    }
add_filter('media_upload_tabs','remove_medialibrary_tab');

$tabs[‘library’] contains all the information for displaying the tab. So instead of unsetting it, maybe you can get it to print out, and modify it with a new query to only receive items uploaded by the current user:
<snippet from here: http://wordpress.stackexchange.com/questions/38634/get-attachments-by-user&gt;

$user_id = 1;
$the_query = new WP_Query( array( 'post_type' => 'attachment', 'post_status' => 'inheret', 'author' => $user_id) );
if ( $the_query->have_posts() ) while ( $the_query->have_posts() ) : $the_query->the_post();
   the_title();
endwhile;

Ah well you are still able to call the thickbox if you need this fix for a live server.