Video Editing:
Lightworks; semi-free alternative to Avid ($1,200), Adobe Premiere ($240/year), and Sony Vegas ($600).
http://lwks.com
Lightworks has been used in the movie industry for more than 20 years. Lightworks also has the fastest workflow in the industry.
Lightworks used to cost more than $1,000, but now Lightworks Pro costs $60/year and you can download a free version from their website.
Editors using Lightworks have produced numerous internationally renowned and Oscar and Emmy award-winning feature films and television programs, including The King's Speech, The Departed, Mission Impossible, Braveheart, and Pulp Fiction.
Lightworks is FREE if you don't need pro video codecs and you can use the free version as long as you want.
Lightworks Tutorials
http://youtube.com/playlist?list=PLCD45705BA08852C0