you can create wind in poser by using the "create wind force" option,from the objects pull down menu!! this will give you a little fan to place in your scene(you must adjust turbulence and range throughout your animation to get gust effects or a rippling breeze!!) this will work for dynamic hair,but will only look right if you also use dynamic clothes!! otherwise you could use say Kozoburo hair and implie a breeze by adjust it forward and back and left and right throughout your animation!!!! i imagine if you go down the dynamic hair route though that it will be an extreamly long render!!!!!good luck!!!!!!!!!! would like to see the results if you manage to pull it off!!!!!!!!!