Janet R - I don't write science fiction, though I may try my hand at it someday. There's a lot of overlap, though, between science fiction and fantasy; maybe not in subject matter, but in approaches to world building & story telling. And of course, the audience. Many readers of sci fi are also avid readers of fantasy.
The Campbell Conference, which is the one I went to, is hosted every year by the Center for the Study of Science Fiction at the University of Kansas. They are very much focused on science fiction, but they welcome fantasy types as well. It's a small conference; pretty much everyone who attends is an author or teacher/professor or both. It's a lot of fun, especially because it's so small, and everyone is very friendly. The conference includes a mass autograph session at the KU book store that is well attended; I even managed to sell a few books, which was nice.
Truth is, I don't read a whole lot of science fiction, but Kage Baker's "In the Garden of Iden" might qualify as science fiction-romance crossover. With a heavy dose of historical fiction as well. Actually, having had a look at your work, I think you might like it.
Janet T - So exciting that you're in the final countdown to release! Which novel is coming out in September?