transmission-remote-gtk is a GTK application for remote management of the
Transmission BitTorrent client via its RPC interface.

- Remotely add (file/url), start, stop, remove, remove & delete, verify
  torrents.
- Works as a .torrent handler (eg. from a web browser).
- Set torrent properties such as speed, seed, and peer limits.
- Change remote settings like global limits, download directory, and
  connectivity preferences.

WWW: http://code.google.com/p/transmission-remote-gtk/