Apowersoft Screen Recorder Pro
Apowersoft Screen Recorder Pro is an easy-to-use and professional desktop tool for recording screen and audio activity at the same time. It also allows you to save your videos as standard MP4 files. By using its built-in converter, you can convert those MP4s into AVI, WMV, FLV, and SWF, and many other formats with no quality loss.

Record All Desktop Activities
Fully-featured but intuitive interface provides flexible capture modes which empower users to make screencast for specific region, application window, full screen and more. It also lets you add webcam video into the screencast to achieve video-in-video effect.

Multiple Recording Modes
Full Screen: records what happens on the entire computer screen.
Custom Area: enables you to select any portion of the screen to record.
Around Mouse: tracks your mouse to record.
Select Window: selects the window you launch on screen to record.
Obviously, these thoughtful modes win users' favor and users tend to choose this as their screen recording tool.

Record Screen with Audio Simultaneously
It's really a brilliant feature that the application can record screen and video with audio from systems, Microphones, or both. More strikingly, it supports recording screen and audio activity synchronously, which eliminates the game players' doubt whether there exists a software capable of keeping the games and their voice in sync.

Record Video from Webcam
If you want to record screen video through a webcam, this screen recorder, which is available for Skype, MSN, and GTalk, as well as many others, can indeed do what you need. It saves the recording to standard WMV format file by default, so you can share it with others directly