Mike,
Sorry I did not get back to your PM. I can ramble about this quite a bit so apologies in advance for the long post. You've received some good replies already so I'm going to try and add around that. First thing I suggest is that you make sure you are clear in your own mind what you are trying to achieve with your forums. Frame your own philosophy. Understand your community.
I hear you when you say you don't want "managers". That may be true in most cases, but when your community expands, and especially if they're a rather rowdy bunch, I can assure you you'll need a certain level of management. It has to remain non-intrusive though. When it grows up you'll always need leadership (which is different from management) and almost always some management. Failure to recognize this and actually embrace that fact is historically one of the killers of online communities.
I suggest anyone interested in this topic read Clay Shirky's article -
A group is its own worst enemy. It's a great synopsis of why and how online communities fail and succeed. Remember, you are dealing with a community and human nature first, the technology follows. It's understanding this that matters. It's not the number of rules you come up with - Dropzone.com has 4 rules only (your rules look strangely familiar!

), the rest are guidelines. It's a bit of Complexity Theory in practice, but that's a topic all on it's own!
People still incorrectly assume that no control or almost no moderation is what's good for online communities and results in "clear communication". It's quite the opposite. (I can hear everyone choke in the room!) It may be what's good for individuals (sometimes) or small self-managed groups but it is simply not what is good for large communities in a virtual world characterized by ubiquity and anonymity. If you think so, you're just wrong. You may not like it, but we should not put it forward as the working model if years of experience on the Internet has proven it to be fatally flawed on many levels.
If your community is timid then you may get away with it for a short while. But it doesn't scale. I have more than 25,000 skydivers making more than 2,000 posts per day, approaching 1,000,000 total posts. The formula for skydivers = (surfers*skatebaorders+rockclimbers)^2-yourgrandpappy. An opinionated fiery bunch who live it to the fullest and speak their minds. We're not swapping recipes (well, we've actually done that as well!). I know you're a surfer so you'll relate.
I chose moderators who had been on my site for a long time. I chose individuals who first and foremost had shown over time that they understood the nature and character of the community I am trying to create. I also had to choose people who knew something (quite a bit) about the subject-matter of the forums they would be moderating. They are as someone else pointed out an extension of me on the boards, but they are also my BS filters. Our sport is dangerous and I need someone to call BS when a user posts dangerous or bad advice. It's not ten-pin bowling. Find people you trust and who buys into your philosophy. Find people who are patient and thick-skinned. Make sure they are nice. Above all find people who will act with integrity at the moment of choice. Then stand by them.
When all is said and done, make sure you're all having fun!
Safe swoops
Sangiro