[MalcolmDiggs]

First, I'd really ask yourself if you need an office.

* San Francisco Public Library has fast wifi, private meeting rooms, etc. I worked there for months after I got sick of giving Regus all my money.

* WorkShop Cafe (http://www.workshopcafe.com/) is awesome, and charges you 2 - 3 bucks an hour to work from their space.

* There are lots of free cafes, hotel lobbies, bookstores, parks with free-wifi, and other places to work.

If none of those work for you, check out WeWork, RocketSpace, NextSpace, Sandbox Suites, etc. There are so many co-working spaces available, that I'm sure you'll be able to find one. They typically have a waiting list for private offices, but there's enough turnover on the open-desk areas that you can normally squeeze in.