With 2011 looming around the corner I am at a loss to help all my happy tortoise friends what to do. Personally new years eve is a time to get together with some friends, get insanely drunk and pass out on couches and strewn about the floor. I have never been to a "real" NYE party and this city has a bunch of them. So if you like to go out and get your drink on with a bunch of strangers I think I should be kind enough to refer you to sf.funcheap.com as they have a great list of parties cheap and free around the bay area.
Also for some alternative ideas in the bay area there is this fun little list of events: http://calendar.insidebayarea.com/oakland-ca/events/alternative+events+in+san+francisco . And no matter where you are, you can catch fireworks over the bay, YAY!
So I hope this will help all you great travelers, and remember that we love you here at the tortoise and hope your new year will be a fantastic and exciting new adventure.