Apowersoft Screen Recorder Pro is an easy-to-use and professional desktop tool for recording screen and audio activities 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.
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.
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.