Not sure if this has been brought up here or not, but my fiance and I have worked out a pretty freedom oriented life by living on a boat. We have a 35 foot sailboat docked in Boston harbor. We have a small solar panel (trying to afford more and a wind generator) but our house bank of batteries will last us a good long while and we have a backup generator, water tanks, spare holds with a good amount of emergency/cruising food, an ice box built into the counter etc etc... all pretty common things on a sailboat. It is a fun life, it is relatively off the grid, and can be completely off-grid if we find the time from work and school to sail away for x number of months.
We have a blog at www.thefitzcarraldo.blogspot.com for those who are interested
and the forums at www.livingaboard.com are quite helpful.