A few days back the second Release Candidate of Drupal 6 was posted for download on Drupal.org .  I'll be blogging a bit over the next couple of weeks about some neat things that Drupal 6 features as opposed to previous releases of the CMS, but for now wanted to note that site theming is getting easier as versions of Drupal advance; which is an exciting development for anyone interested in making sites that are aesthetically unique and provide enjoyable user interfaces.

To get cracking in discovering how Drupal 6 can offer more power in site theming, be sure to watch Moshe Weitzman's screencast introducing the Theme Developer module; a new part of devel which lets you know what theme functions are being called on your site, as you look at it!  Sort of like a Web Developer toolbar or Firebug extension for Drupal :)

I wouldn't recommend using Drupal 6 on a 'live site' for the next couple of months until the contributed modules you may want to use on your site are available - be sure to check in on their status first.

BTW, here's a list and discussion of some new features in d6.0:

http://groups.drupal.org/node/8059