As someone from the other side of the world (the UK) who finds this protest extremely inspiring, I'd be wary of hitching your colours too quickly to a common platform. It's interesting to think about 'cohesive ideas and concepts', sure, but preparing a specific list of demands seems like a preparation for the end of the protest - either you don't get what you demand, leading to demoralisation, or you _do_ get what you demand and discover that it wasn't really what you wanted after all.

The fundamental statement of a protest movement is, "Things can't go on this way." The incohateness of the post-Seattle movements is a strength, not a weakness.