I use the latest version of Agent and I’m in love with it. Very nice program. Yenc is the second coming of the Messiah as far as I’m concerned. Less downloaded file is good.
Another vote for Xnews. I’ve been using it for years. I never had to use an external yenc encoder because Xnews was one of the first newsreaders to natively decode yenc. Agent took a few months and a lot of user petitioning to finally update.