Some really useful free tools...

Joomla! Extensions

Update Manager - A simple component that allows you to update your Joomla version from within your admin panel, super easy.

BIGSHOT Google Analytics - The Plugin puts yours analytics code into your website so you can start tracking your site stats with the power of Google Analytics.

EXtplorer

Simple Image Gallery - What it says - a simple image gallery, looks good and works.  Comes into its own with K2

K2

JCE - A WYSIWYG text editor component, makes entering, editing and formatting your site content much easier.

Free Software

AAA Screen Capture

Ifran View