Thanks. By the way -- another possibility is to work for technology projects which aren't really in the startup game.
A lot of my friends work for the Wikimedia Foundation, Thunderbird, Mozilla, Tor, and so on. There's no possibility of walking away as a zillionaire, but neither do you have to work with (or for) dickwads who are only in it for the money and who are out to screw you out of your share. And if you're any good, there's a guarantee of doing something significant that you can point to later on your resume, should you want to go the entrepreneurial route. These organizations are global, so you get to do a fair bit of travelling too.
Non-profits have their own special brand of problems, but if you tally up the pros and cons they are definitely an option.
From several folks I've known who worked at Mozilla, you just trade in money-dickwads for power-dickwads.
Obviously this varies depending on where you are in the organization. But the bottom line is: there are always dicks, and they always try to screw somebody (that's what dicks do), and in startups, there are probably more of them because millions is more interesting than power over a few people.
I'm all for exploring unconventional lifestyle design patterns. And I have been nursing certain plans of becoming a techno-hippie :)