I just realized I never reported back where I went on this little jaunt.
Banana River Marina let me put my boat in, park the van and trailer, and then (for $5) they lift the drawbridge for you. At night you can tie up to a dock just outside the marina and drawbridge. It's primitive, but a great spot if you needed some protection. They also have a boat shop with parts and service right there.
Very friendly place and I would certainly recommend it.
http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=marina&sll=28.333877,-80.660087&sspn=0.003305,0.006968&ie=UTF8&hq=marina&hnear=&t=h&z=18