iSight and no iSight

I have the MacBook with iSight, but my girlfriend has the PowerBook with no built-in camera. She'd like a camera that she can use or mount onto the powerbook for video chatting. Does anyone have any particular brand that they'd recommend?

Thanks. And links would be greatly appreciated.

I prefer the iSight and it works great...

Awesome. The only thing is, her PowerBook does not come equipped with the built-in iSight and she wants an external webcam. Any suggestions?

Im talking about the external iSight

http://www.apple.com/isight/

Ahh.. I never knew one existed! Thanks for the link.