While it's true that WYSIWYG editors have improved in this regard, they sadly still tend to produce code that's hairier than a yak's armpit, in my experience.WYSIWYG editor tend to produce really ugly code which isn't valid
There's still no substitute for doing it by hand. The dark side is quicker, easier, more seductive.
Much of the Dreamweaver-generated code I've seen is full of semantically-null divs nested deeper than a pair of newlywed cave vultures. Blech.Give Dreamweaver a go, and see if you like it… but I suspect you'll quickly outgrow it. My advice is to find a good editor that you like – emacs, vi, it doesn't matter – and learn to use it.
(Yes, I'm feeling metaphorical this morning. Also, yak's don't have armpits and there are no such things as cave vultures.)