qBittorrent - a hidden gem

The qBittorrent project aims to provide a Free Software alternative to µtorrent. Additionally, qBittorrent runs and provides the same features on all major platforms (Linux, Mac OS X, Windows, OS/2, FreeBSD).
qBittorrent is based on Qt4 toolkit and libtorrent-rasterbar.
qBittorrent is developed by volunteers on their spare time.

qBittorrent v2 Features

• Polished µTorrent-like User Interface
• Well-integrated and extensible Search Engine
  • Simultaneous search in most famous BitTorrent search sites
  • Per-category-specific search requests (e.g. Books, Music, Movies)
• All Bittorrent extensions
  • DHT, Peer Exchange, Full encryption, Magnet/BitComet URIs, ...
• Remote control through a Web user interface
  • Nearly identical to the regular UI, all in Ajax
• Advanced control over trackers, peers and torrents
  • Torrents queueing and prioritizing
  • Torrent content selection and prioritizing
• UPnP / NAT-PMP port forwarding support
• Available in ~25 languages (Unicode support)
• Torrent creation tool
• Advanced RSS support with download filters (inc. regex)
• Bandwidth scheduler
• IP Filtering (eMule and PeerGuardian compatible)
• IPv6 compliant
• Available on most platforms: Linux, Mac OS X, Windows, OS/2, FreeBSD

Screens:

Download: Here 

Official website: Here