Cuaroc

About usable website security tutorial, I don't really know. But I can offer for you the Chris Siflett: Essential PHP Security and the O'Reilly Media Head First series. There are so many other books in this collection.

If you interested about that, I can help you and give some tips for that scripts.

I don't really know. In my opinion the best is your own script, what you write [ Not for all (little) projects ]. Using the open source cms for core is too risky, I think. But writing own script is too long time. 

Here is a comparison. I hope it will help you to find the right choice. [ WordPress vs Joomla vs Drupal ]:

http://websitesetup.org/cms-comparison-wordpress-vs-joomla-drupal/

shadow selector does not exist. It should be, text-shadow, or box-shadow.

Some oldschool hardstyle

And many more like these. 

2 videos per day please -- Rumor

The basic wordpress cms, what you install clean, without plugins is almost error-free. The problem is, the basic wp cms is too few for this project what you want, so you need to install plugins, and almost all wp plugin has a backdoor. So it' sucks, but there are many more cms system, for example: Joomla, Drupal, SMF( it's forum software, but there are a lot of plugins for this ).