Check out this page on the main site which shows examples of the different 20' layouts:
http://www.classicseacraft.com/20Footers.htm
I concur that the Seacraft 20 is an incredibly versatile boat. I can take the kids to splash at the sandbar, fish the shallows of Florida Bay, and go trolling offshore in this boat all in the same day. Equally impressive is that you don't need as much horsepower (and fuel) to push these hulls as you might think, many folks around here are quite satisfied with 90 to 130HP.