i finished the beach (alex garland) a while ago. really enjoyed it. the ending's great. yeah that's another deserted-island kind of book, so if you enjoyed lord of the flies (which i enjoyed immensely) i'd recommend it.
make your own damn movie (lloyd kaufman) is a surprisingly detailed, funny, and motivating book on the filmmaking process, written by an admittedly terrible filmmaker.
slaughterhouse five (kurt vonnegut) is probably one of my favorite books of all time.
currently i'm halfway through a scanner darkly (philip k dick) and i'm liking it so far.