I think Courselab is an excellent, simple to use tool for people with training and instructional design expertise but with limited technical skills.

It contains, in a free package, the majority of functionality that an instructional designer could want in creating simple e-learning courses.

The interface is intuitive and easy to learn how to use.
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As you might expect there are some compromises - you don't have total freedom of design and functionality built in - but then it would no be so easy to use.

In particular, for someone with little experience of using graphics packages, I found the graphics manipulation tools, like drag-and-drop and hotspots, very easy to implement.