Welcome to CF Rsmith!
You are exactly on the right path!!!
(well... "one" of the right paths)
Do your course, then start sailing on a few local boats.... I think that if you sail too much before hand... You might not be as focused and would likely lose a lot of information from the course...
There are TONS of great CFr's down your way.... The crew section here is a great resource...
Re boats... your mentions are good... BUT.... go sail first... find out what you like/hate/can't live without.... Lean towards what fits your eye and pleases you... then do your
research and ask specific boat questions when you're ready...
(ps doesn't mean you need to stop asking now...)