I did this in '07 and '08 (and won, ie completed the story and 50K, in '08!)
I'll be starting again in nine minutes!*
Anyone who feels like keeping track or shooting me a few words of encouragement can find my profile here www.nanowrimo.org/eng/user/243250 and if anyone is feeling crazy enough to join me, please do! It is fun, albeit a rather intense, tiring and insane version of fun.