Internetworkers: http://www.ibiblio.org/internetworkers/

[Tony Spencer <tony AT tonyspencer.com>]

> Agreed. My only experience with Atlassian has been with JIRA, but  
> based on
> my experience working with JIRA I am less than enthusiastic about  
> anything
> else that they make :).

Steve if you are still hunting for a bug tracking system I can say  
that I've been very happy with Mantis over the past few years.   
Sometimes its difficult to remember exactly how to make it do exactly  
what I want it to do but the granularity of control is fantastic,  
runs on mySql, and I find that even non-techies like designers have  
no problem using it.
http://www.mantisbt.org/