xpd:

 

What are the requirements for being able to do this myself ? Who do I get "certed" by ? :)

 

What equipment do they actually use to do the testing ? Would it be worth my becoming certified and buying the gear to save the company some $$ ? Look at 200+ computers, monitors, various field gear etc.......

 

Based on the guy a past employer had doing it, you need to only be a part moron, and have a portable appliance tester machine that someone has spent about half an hour showing how to use.