UPDATE: Buddhika Amila Sampath created the Light Fantastic theme, not Joshua Brauer. Joshua is the maintainer. I recently searched on Themebot for a great contributed Drupal flexible-width theme for DrupalSouth.net.nz and found Light Fantastic. Joshua Brauer maintains the awesome Light Fantastic theme, which was created by Buddhika Amila Sampath as part of the Google Summer of Code 2007. Screenshot of Light Fantastic on the DrupalSouth website: See a larger image. Light Fantastic had only been released for Drupal 6, so I (Bevan) backported it for Drupal 5 with four simple changes;

• Implement the backport of preprocess theme hooks for drupal 5 in template.php.
• Add function lightfantastic_regions() in template.php with regions defined in lightfantastic.info.
• Remove lightfantastic.info.
• Fix the parameters of lightfantastic_comment_wrapper().

I fixed a few other things which appear to be non-criticial bugs in the drupal 6 version (not tested). I submitted a backport and bugfixing patch to the Light Fantastic issue queue on Drupal.org.