Know Drupal from last 5 years. Worked on new custom module development, theme development, ready module customizations, CMS administration, troubleshooting, upgrading etc so far.

Worked on 30+ Drupal sites so far, some works lasted till year span.
Following are some samples :
http://www.reitfieber.de/ , http://de.privatesalesclub.buyvip.com/ , http://www.diyfather.com , http://www.ikvader.nl , www.blackbird-group.com (later transformed in Joomla) , http://www.king-kamehameha.de , http://www.collegeontrack.com, http://www.thegateway.org

I think drupal made life easy.