Vokoscreen is a new screen capture utility based on ffmpeg.
It can capture both video and audio, with options to record entire screen, window, a selected region, magnified area or a webcam stream.
The UI is not pretty but it is functional and in my testing most of the features were working properly. To install Vokoscreen in Ubuntu, run the following commands:
sudo add-apt-repository ppa:vokoscreen-dev/vokoscreen
sudo apt-get update
sudo apt-get install vokoscreen