Info Comm is offering an online course in AV Technology. There is one thing that is certain - and its that AV technology isn't fading any time soon. Its an affordable and green way to give a variety of looks, content, and feel to a very basic set for a variety of uses. Especially for coporate work - meetings, trade shows and such, AV is an option that is increasingly popular, and it is often incorporated into more and more traditional theatre.
Better yet, the quick start class online is free! You can take a look at that course here.
The course is online and an introduction leading to further certification. The test costs $200 to non-members.
If you want to take the pre-test to test your knowledge go here
This is a PDF that discusses the requirements for full certification.
Info Comm also has an article about project management and budgeting for live events.
Regardless if you choose to take the class or not, sheck out the site - there is a variety of worthwhile info to check out!