Outlining

How do you organize your thoughts? A free form data kinda person? I am a list person, and a outline person. The sad thing is that after DOS there is simply no good outlining programing. I used to use this little DOS program call PCOutline. Now that we are in NT and Linux world, where is a good outliner program? I tried Brain Forest Professional, but it is not that good. The keyboard based navigation is very poor. Now I am looking at Info Select a very interesting tool. Full reivew later.