What is the best free application to use to chat with someone with video?

[BBCMember]

What is the best free application to use to chat with someone with video? Looking for the best quality for both audio and video. Also, I want the size of the screen of the other person to be a decent size (not a postage stamp).

 

[I4AT]

Windows Live maybe? That's what I've always used.

 

[BernardP]

Although I have not used it, I know people who are happy with Skype Video Calling

 

[BBCMember]

Actually, we used SightSpeed (sightspeed.com), and it works pretty good! Works on Mac and PC.