Other than what you have listed, for an ow diver, Blue Spring near Orange City is pretty cool. It reminded me of Devil's Eye at Ginnie, but it has a greater outflow and is a bit wider. The drift dive afterwards is pretty cool as well. Due to the manatees, I do not believe they allow divers back in until March.
I have also dove Alexander Springs. It was shallow, but had some interesting rock pockets and aquatic life where the water bubbles through the sand. That is usually a good place to test out new equipment or basic skills. It was nice because it is not crowded.
The thing I liked about Blue Springs was that I was only charged a park entrance fee, making it a good place for multiple dives.