How to use SharePoint for Standard Operating Procedures (SOPs)?

I have been tasked with designing a solution using SharePoint to help us manage our SOP’s + policies. Our business is heavily manufacturing based so we naturally we have a lot of regulation and processes that need to be documented, sent and confirmed by our employees. Some of the SOP training is also delivered via video (but most is Words Docs, PDF and sometimes Powerpoint slides).

So my question’s are :

1. How can I manage the creation and approval of a SOP in SharePoint (I am thinking a site with documen library, metadata and Workflow).
2. Is it a good idea to add video (outlining a SOP) into SharePoint?
3. How can I get (force) the engineers to train on the SOP?