[dvillase]

I've been using Wordpress for a couple of years. It's easy to use and extensible. If you aren't afraid of dipping your toes into some HTML/CSS/PHP than you can find a really good free/premium theme and some good plugins to make a good blog.

Just make sure you backup not only your database but themes because if you get malware, its really difficult to find out the source. Easiest thing to do is to revert to a clean copy, change passwords, and protect yourself!