I just committed the initial Drupal 6 version of the Ubiquity Drupal theme to the CVS tree at drupal.org
There should be 6.x-dev version available in 12 hours.
Would love to hear your feedback at the issue queue at drupal.org

Update: Download the development snapshot from the Ubiquity project page.

In today’s excercise, we are going to adapt some nice styles to the Drupal menu items. There is a widely known CSS technique called sliding doors which became very popular since it became published. We are going to spice this a little more with extra hover states and implement sprites to improve the performance a little. This will involve a little PHP code – overriding a themeable function, and some CSS markup.

A little foreword on Drupal theming

Most of you reading now aware of that it’s said: Drupal is a great CMS. It is a completely flexible platform and serves as a great foundation to build nearly any kind of website. It has a well structured system which nearly completely separates code, content and style. Perhaps this flexibility causes most issues when dealing with theming. Creating templates for Drupal is wonderfully simple when it comes to the basics. Vast documentation and a helpful community stands there for the template developer but there are so many possibilities and so many available options that it’s often not enough.