I am now at 79,602 words of my nth draft. Since I keep going back to the beginning and starting over, this is actually only the second draft of this latter portion of the book.
Plot is key at this point - it's pretty much all tension and action. Groan! Why couldn't I have written a nice children's book about cute furry mice or something like that?
If you also write fantasy, in case you aren't insecure enough already, here's a excellent article at "Writing World" which I re-discovered recently:
Keeping Your Fantasy Armies a Little Less Fantastic