rtGui is a web based front end for rTorrent - a command line
BitTorrent client. It's written in PHP and uses XML-RPC to communicate
with the rTorrent client.
Features

    * List all torrent downloads or by
    * started/stopped/complete/incomplete/seeding status.
    * Sort view by any of the displayed columns.
    * View detailed torrent information.
    * Stop/start/hash-check torrent.
    * Set upload/download speed cap.
    * Add torrents by URL.
    * Does not require mySQL or any other database.
    * Set priority per torrent or file.

WWW: http://code.google.com/p/rtgui/