Moving from php-Nuke to Joomla

After the defacement of one of my websites powered by php-nuke (CoppAmerica.com), I decided to change software. Trying the various possible alternatives among which Post-nuke and Xoops, I decided to go with Joomla.
Believe it or not in a couple of days I was able to migrate all stories, users, and content elements and managed to put up a test site. I quickly adapted the first theme I came across and after another few days of testing put the site in production.
I still have to dominate all aspects of Joomla, but the management side is really straightforward, the code seems very well written and the developers are very careful on tracking and patching security issues. Adding to this solid foundation is a very active developer site powered by Sourceforge.