There are a lot of software programs out there for writers. I selected Scrivener because I'd heard nothing but raves about the program. In fact, one of the primary reasons I stepped over to the dark side and became a Mac user was to get Scrivener. There is now a beta program available for Windows.
I use Scrivener to write novels, but it includes all kinds of writing assistance, including screenwriting.
I am hardly an expert on Scrivener, but here's a snapshot of what I work with:
On the left, the Binder reflects each scene, and the POV of that character's scene is color coded. I give each scene a description so I know what it's about.
Below the color-coded scenes, I have each of my character studies, and several other folders, including Places, Research (where you can import Internet pages with your information—but I'm old school enough I still print it out), and whatever other folder you want to create. I have three for this manuscript: NOTES/BLURB/PLOT; SOC (Stream of Consciousness) Plot Concept; and STEP OUTLINE which is more of a scene by scene synopsis I work with to get more detailed. By the way, the program also has a synopsis piece that can help.
The center area is where the magic happens, and all of the hard work to make sure it does.
On the right is what Scrivener calls Inspector. It's where I create cards for my cork board, and make any notes I want to make for that scene, or the project.
Scrivener has many more facets than I've figure out how to use. In fact, I have two books that supposedly will enlighten me and provide an even greater experience. As anal as I am, I don't have the patience (at least not yet) to work through them. BUT, their support team has been magnificent.
One thing I love is the easy way it works with Dropbox, so I can seamlessly transfer my work from my iMac to my MacBook Pro.
Here are the links:
For Mac Users: http://www.literatureandlatte.com/index.php
For PC Users (remember, this is beta): http://www.literatureandlatte.com/scrivenerforwindows/
CR: The Halo Effect by M.J. Rose
It's all better with friends.