Initially, I was not much of a Sci Fi fan, although I watched Star Wars repeatedly with my brothers as a child. When I was a senior in high school, however, my favorite teacher told me I needed to read a book called Feed by M. T. Anderson and that book really got me hooked. From there I read numerous stories by Ray Bradbury, Frank Herbert, and Robert Heinlein.
Some of the science fiction I would recommend:
Anubis Gates by Tim Powers, the Firefly T.V.series, and the movie Sunshine