Over the last few weeks, I've been working on beefing up the wiki here at glfusion.org with some info regarding Geeklog theme creation. A large portion of that, a tutorial on how to port a theme, involved taking an open-source XHTML/CSS template and converting it step-by-step into a GL theme. The tutorial is at a point now where I feel the first draft is written, and would like some feedback. Please check it out and post your comments in this forum thread.
The result of that tutorial is a fixed width, 2 column layout theme with left blocks and a main story column called Refresh. All credit for the theme design goes to the original author at www.styleshout.com. It is meant for 1024x768 and higher screen resolutions. I have tested it in Firefox2, and Safari public beta 3. In other browsers, your mileage may vary.
Grab it here.