reading the novelization of ST:TMP a month before seeing the movie didn't stop me from loving every minute of it.
I'm with you there. I read the novelization in a weekend, while trying to find someone to go to the movies with me to see TMP... and eventually went by myself.
I was amazed, after seeing the film, that one "Starlog" I read as a back issue had actually printed a pic of the Voyager 6 probe set before the film came out! But that was really the only plot point that would have been a crucial spoiler. STiD has lots of 'em.