Best webcam for imac/leopard?

I wanted to buy Microsoft LifeCam Cinema HD but realize it probably isn't much good with the imac?

What is my best option for a webcam of good quality and compatible with my imac?

Thanks

This is the best but you may have to hunt round for one as they have been replaced by built-in units. Not sure there is any other Firewire Web cam;
iSight - Wikipedia, the free encyclopedia

Collin Bl said:

This is the best but you may have to hunt round for one as they have been replaced by built-in units. Not sure there is any other Firewire Web cam;
iSight - Wikipedia, the free encyclopedia

Click to expand...

Hmmm is that the same isight thats included in my imac? It won't work with applications etc

What applications will it not work with?

Try rotating the Bezel on the end of the camera - it may be turned off. Does green LED on top show up when it is plugged in?