I made a script a while ago that did something like that...I got bored and gave up, here's the URL to it:
http://www27.brinkster.com/borgulus/script.htm
Type /rsp and it should echo the servers and the amount of players on them soon after.

Remember though: It relies on the lines containing the data to always be the same (they haven't changed the lines for a long time so hopefully they won't do it any time soon)