Links

Software
Unity, get Unity for free at their web-site.

Syphon, used for sharing videos between programs. I used my VJ software as input in Unity, this is possible through the use of Syphon. Also, it's for free.

Modul8, the VJ software of my choise.

Helpfull Links
Unity Scripting for Noobs. New on scripting in Unity? Go check out this page for all the basics.

Getting started in Unity, this tutorial really helped me understanding the basics of Unity and scripting as well.

The example projects provided on the Unity web-site are a great way to get started. I used multiple example projects and got all kinds of usefull things out of it. Especially the procedural examples, they have some nice scripts!

and everything you are looking for, and I didn't post on my blog, you can find in the Unity Answers page.

For all other questions, I found this site really helpfull.

All these links we're really helpfull to me when I got started, but the thing that matters most, is just dive in to it. I never worked with Java-scripting (they should have called it Unity-scripting) before, but because I had some clear goals, it made learning the stuff so much easier. Set yourself a goal, and go ahead and realise it in Unity!