HelloNzb (no relation to Hellanzb) is Sourceforge's newest open-source usenet news client. Although still in its infancy, HelloNzb looks to be a promising new addition to the open-source lineup of newsreaders and NZB clients such as SABnzbdPLUS, URD, and NINAN.
http://sourceforge.net/dbimage.php?id=273977
Homepage: http://sourceforge.net/projects/hellonzb/
