Now you can chat with your friends and family in Gmail with Voice and Video. All you need is a webcam, Below is the list of webcam offer by Google.
Next go to http://mail.google.com/videochat, click at Install voice and video chat to download the setup file.
Double on the downloaded setup file.The setup will start to download Gmail voice and video chat
Upon completion of installation, you will be prompt to restart your browser.
After you restart your browser, it will go to your gmail account and do some setting, then you can start using it.