Hi there. You may remember me from such blogs as The Humble Geek. Due to a recent Blogger change, I've had to set up shop using server-side software. I looked at three different projects and ended up with Dotclear. I'll break down my selection pro/con list:
The big man in town. Unfortunately it uses MySQL for a backend and my server is PostgreSQL territory. Poor security is another minus. A Wordpress blog has probably been defaced by the time you've read this sentence.
I saw this recommended as an alternative to Wordpress. It's Perl based and writes to flat files. Not very flexible for my taste.
Written in PHP, supporting PostgreSQL, themeable, plugable, and more. I couldn't ask for anything better. I have customized my own theme and added some plugins. The built-in functionality also allows me to add the Geek Tip as a widget. I don't have to manually edit the template as I had to with Blogger.