Project Management Software Alternatives

There are so many options for project management software now that instead of posting a list, I'm posting a list of lists:

• Top 10 Open Source Web-Based Project Management Software
• 5 open source project management apps to watch
• Comparison of project management software
• Need a Basecamp Alternative? | PM-Sherpa

Have you used any of these? What did you think of them?

I tried dotProject and it seemed overly cumbersome. I'll be trying some more packages in the next few months.

I use Assembla which includes a lot of packages like Trac and SVN. I like it because its all maintained for me and I don't have to worry about it. Of course the more security conscience people wouldn't like it so much but I have never had a problem.

It is also useful because I can let people working under me access it and obviously since it is online I can access wherever I am.