News Rover is a Usenet newsreader that features a built-in search engine for finding files in any Usenet newsgroup. Just enter keywords and News Rover will instantly find matching files in any newsgroup. News Rover includes a built-in RAR/PAR processor for handing RAR file posts. News Rover fully supports .nzb descriptor files. News Rover also has a JPEG picture gallery, iPod/Windows Media Player transfer option, password protection and file encryption for privacy.

Read more about it here: News Rover