SwarmTv is a command line broad-catching program that downloads selected torrents/NZB's from an RSS or Twitter feed and puts them in a directory for your torrent program to download. The torrents to download are selected using filters that look at the name, size, and episode/season of the torrent. A mechanism is in place to prevent double downloads. Swarmtv can even send an email when a new episode is found.
TurnKey Torrent Server Appliance is a file server appliance with integrated multi-protocol file sharing that can be used to handle all types of file downloads. Files can be added to the download list using the Torrent Server handler extension for Firefox or through a simple Web interface that allows you to manage the server remotely. It is especially useful for centralizing file sharing on a shared network. Anti-virus scanning is included.
KTorrent is a BitTorrent application that allows you to download and share files using the BitTorrent protocol. Key features include queuing of torrents, global and per-torrent speed limits, previewing of certain file types, importing of partially or fully downloaded files, file prioritization for multi-file torrents, selective downloading for multi-file torrents, kick/ban peers with an additional IP Filter dialog for list/edit purposes, UDP tracker support, support for private trackers and torrents, support for µTorrent's peer exchange, support for protocol encryption (compatible with Azureus), support for creating tracker-less torrents, support for distributed hash tables (DHT), support for UPnP to automatically forward ports on a LAN with dynamic assigned hosts, support for webseeds, scripting support via Kross, and interprocess control via DBus interface.