Help with Site Redesigns

I built the existing TaoSecurity.com and Bejtlich.net Web sites with with Nvu. I would like to redesign both sites, but I am not sure how to proceed. I approached one company and they told me they design sites using Wordpress. Another uses Joomla. I am not comfortable using PHP given some of the recent security problems I've seen. I'm not sure I want/need a database on the back end either.

I have a feeling that I could use a nice style sheet from Open Source Web Design and continue to use Nvu to generate static HTML. Does anyone have any comments on this?