Looks nice. What I like better about the iSight, that make it worth its price compared to the Logitech cam you linked to are the following :
• FireWire connection
• Built-in microphone
• Lens iris, you can close the lens, make sure no one is looking in
• The stands that come with it, for all screens and desks
I'm very pleased with the iSight. In darker rooms it is not a champ, but with good ligting it does look very good.