Code for showing top members by downloads of their files

This is what I use in a block...might be something useful here. I imagine there are better ways of doing some of this, but it works great for me. Will give a list of members (linked to their user page) according to how many downloads there have been of their files. I also use CSS classes and code to pretty it up but have stripped that out here. Oh, this also excludes uid 1 which I normally add to all my sql stuff. That can be taken out easily enough.

<table>
<tr>
  <td>
<b>Member</b>
  </td>
  <td>
<b>Downloads</b>
  </td>
</tr>
<?php
$limit = 8; // set how many you want listed here
$results = db_query("SELECT name, files.uid, SUM(count) AS UsersTotalDownloads
FROM upload
JOIN {files} ON upload.fid = files.fid
JOIN {file_downloads}
ON files.filepath = CONCAT( 'sites/default/files/', file_downloads.filename )
JOIN {users} ON files.uid = users.uid
WHERE files.uid != %d
GROUP BY users.name
ORDER BY `UsersTotalDownloads` DESC LIMIT %d", 1, $limit);
while($output = db_fetch_object($results)){
print "<tr><td>";
print "<a href=\"/user/$output->uid\">";
print $output->name;
print "</a>";
print "</td><td>";
print $output->UsersTotalDownloads;
print "</td></tr>";
}
?>
</table>