I am currently experimenting with themes in Drupal and am trying to change the AD Novus theme to fit my needs. Write in the comments if you like it or not!
mod_rewrite is an amazing module for Apache! First time I came in contact with it was when installing Drupal once a long time ago. Back then, I thought it was extremely awesome and guessed it was really hard to implement myself. Yesterday, I started using it and found that it was in fact quite easy.
As the geekiest soldier in the Central Band of the Royal Swedish Army Band 2008, I am responsible for the band's unofficial website: http://www.amk2008.se.
One thing I and others with me have found problematic is uploading images to the site. Formerly, I used standard html file upload controls to send the files one by one. But as it used to crash when sending large files and the process of uploading many files became quite a pain, I decided to code a client-server java + php & mysql solution.
Yesterday, I decided to upgrade from Drupal 5 to 6. After reading some documents, the process was really easy to perform. The upgrade documents are available here and are easy to follow: http://drupal.org/upgrade/.