I write all year long as well, and have pretty much discovered that Nanowrimo is just not for my writing style. I never quite hit the 50k mark because churning out words tends to turn my stories into crap, but I keep doing it for the kick in the pants and the community of writers.

So I'd be interested in the community you've described. 20k is a much more reasonable goal, and it'd be nice to be part of a community catered for more serious writers.