I've actually gotten started :-) My word count is not quite accurate though since I like writing a first draft by hand. But the notebook I have has 140 pages and I average about 7 words per line so with 21 lines per page that means one full notebook is roughly 20 500 words. So if I manage to fill two of them that should do it 8-)
http://www.nanowrimo.org/en/participants/anntro