There is a new nessus client available, it's called sussen. It's based on GNOME 2.2 and attempts to take full advantage of the platform (glade-based GUI, GConf, no deprecated calls).
In the spirit of open source software, we are attempting to release early and often. So with that in mind, we have released Sussen v0.1. This is meant as a developer release, it's not currently suitable for end-users. There are lots of bugs and a lot rough edges right now. This project is being sponsored by my company Star Chamber Inc. All code is being released under the GPL. More information, source code and screenshots are available at http://sussen.sourceforge.net/ -- Loren Bandiera, CISSP <[EMAIL PROTECTED]> Star Chamber Inc.
