"I like template format, as I am burned out on computer languages and html gives me a headache LOL"
Then you should probably find a different line of work or hobby...no LOL. Even Templates are built with HTML, so good luck avoiding headaches.
"What size and quality video can dw support?"
DW doesn't necessarily limit size or quality. Server and browser capabilities have far more effect on those, as does the doctype of the pages you build.
"Can I export multipal sites or folders as a single linked project?"
As many as you like, but DW doesn't "export" the site. You do that with Windows Explorer or Mac Finder.