I wrote one myself and I'm tinkering and wondering if someone else would like to check this (free, GPL'ed) tool.
An alpha version in Portuguese is available at:
http://www.geddy.hpg.com.br/software/slackbd/
Please send me feedback.
A new and improved version is under work, with English interface for the console as well as a new-new Tk interface for X
Thanks.
Valter.