I've used Trac in 3 projects now, and I like it a lot. The wiki is great (works even in tickets). Trac integrates with Subversion, has milestones, timeline, e

I've used Trac in 3 projects now, and I like it a lot. The wiki is great (works even in tickets). Trac integrates with Subversion, has milestones, timeline, etc. There are also some great plug-ins. My main gripe is that it would take some effort to move tickets between Trac projects. This topic has also been discussed before, you might dig for it at "http://searchyc.com/ http://searchyc.com/".