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?

>>1
That's a pretty big task. I've gotta say, though, you're pretty sure of yourself, if you think that SF isn't covered very well. Try out some Hubbard or Heinlein or Martin or Gibson, and tell me there's not good Sci-Fi.

If you really think the genre hasn't been covered well enough, you may want to do some more research on the genre / reading in the genre before you try to tackle something as groundbreaking as you think it's going to be.

I'm not trying to say you can't, but if that's really your view on the subject, I'd say you aren't ready to tackle this yet.