Space Coast Nerd Fest is a con of a slightly different sort. It combines all realms of nerdom and geekery into one solid convention. Outside is a smallish ren faire type event and inside is a typical convention.
They some very interesting guests that you normally see at conventions, my favorite being guest speaker and former Astronaut Winston Scott. I would have loved the opportunity to meet and speak with him.
The other notable (to me) was Ricou Browning better known as the 1954 classic Creature from the Black Lagoon. He has a long history of underwater filmography in everything from 20,000 Leagues Under the Sea to Flipper; he even worked on the James Bond film Thunderball.