How do you record your computer screen and yourself at the same time

need for reaction video of myself and the screen together. Like a video at me at the corner of the computer screen video

If the photo is in the corner at the time you make a full-screen recording in CamStudio, the photo will be there in the video.

Here is how you can do that: use Security Monitor Pro to view your webcam. Once it is setup, right click on the preview window and select 'Detach Preview'. Put the preview up on your screen and then use My Screen Recorder - http://www.deskshare.com/screen-recorder.aspx - to record the screen with your webcam preview.