Goolge Launches much awaited its Video Chat with its GMail, So now Gmail User can use video chat with thier friends. All you need to have Video Camrea to do video chat with your friends. This feature is similar to Yahoo Messager view webcam.
Once you have Video Cam and Microphone plugged in your computer then you have to install plugin to use Google Video chat.

Picture taken from google
For more information to install please click here