Ask HN: What do you guys use to write, plan and schedule your films?. [Beta]

I have been working on a website to help amateur filmmakers, ( like the kind that post their videos on youtube ). Does anyone here do that either full or part time? is it a good idea? what do you guys use to write, plan and schedule your films? you can access the website here http://www.filmitright.co.uk (currently you can signup for the beta)