The idea that we should be able to create opportunities for action that can embrace a "diversity of tactics" is a nice one (see, for example, an interesting article on this topic by Starhawk at http://www.peacenews.info/issues/2444/bey ondviolence.html)., though organising the practical implementation of this appears to require a lot of energy. There is certainly scope for exploration here.
Perhaps the most important thing is that pacifists and nonviolent activists remain open to learning about and understanding the diverse range of social, political and economic justice struggles that are taking place locally, nationally and internationally, the groups involved, their underlying ideas and ideals and the tactics they employ to attempt to bring about change.
There also has to be a basic understanding of where the genuine opportunities to affect change actually exist - and over what kind of period of time positive change could occur. The war in Iraq is one terrible event in a long list of war and peace scenarios: we must stay focused on the outrage that is war itself.