A book of my own

Any suggestions for a person who is about to write their own book? Theme will be sci-fi, because I feel that every other theme has been covered by another writer already.

Won't be anything like things that already exist like Star Wars. I'm planning on writing something completely new, something that people will find interesting to read.

I've never written a book before though. Are there things that I should look out for? Applications that help out in writing a book, or should I just bring out the good old Microsoft Word?

>>9
Starship Troopers (arguably Heinlein's most popular) has been translated into 11 languages and spawned 2 (albeit bad) movies.  That's pretty international. He's also pretty famous.

I mean, it seems to me like you think whatever book you get out there will do it for you. What I'm saying is, without a better understanding of the genre you're trying to revolutionize, you're not going to get anywhere.

Get yourself rooted in current Sci-Fi and figure out what about it doesn't appeal to wider audiences and fix it.  The only way you're going to produce something new that's worthwhile is to understand and know what came before you.