Here are the tecnologies that I use and prefer:

Operating System
GNU\Linux. I've always been a Debian fan and did never move to any of its sister distributions, but I must say that Ubuntu and its 6-month-based periodic relases have won me.

Window environment
KDE. While I originally helped the GNOME project, when I tried KDE 2 I liked it so much that I switched. I've recently tried GNOME once again and I must say that I really like the progress they have made. They still seem far of KDE in terms of application integration, but it seems better at providing more usability. I'll give it a second chance.

Programming Language
Java but will be using Ruby more and more in the next months.

CMS/Portal software
Drupal and Liferay