qBittorrent is a Bittorrent client using C++ / libtorrent and a Qt4 Graphical User Interface. Its been under heavy development for a full year now and finally its maturing into one of the best torrent clients out there. I am the Project Consultant + Packager of the application for my distro of choice: openSUSE. Packages for other distributions are available (qBittorrent Downloads) and a Windows port is coming soon.
Packages for openSUSE 10.2 and 10.3 can be obtained from my openSUSE build farm account at : home:jefferyfernandez. If you encounter any bugs in the package or the application itself, please report them at: qBittorrent Bug-tracker. Happy torrenting 
qBittorrent Home: http://www.qbittorrent.org