QuickTime can record the screen on your Mac. You can make a video recording of the entire screen or just a selected portion of it.
An ultra simple screen recorder that will supercharge the way you communicate at work. Record, edit and share HD videos in seconds.
This Online Voice Recorder is a convenient and simple online tool that can be used right in your browser. It allows you to record your voice using a microphone and save it as an mp3 file.
Screencast-O-Matic - Capture your screen with instruction to communicate effectively via video screencasting. This app has a 15 minute maximum for the FREE version.