Hi there Can anyone recommend an affordable webcam that is Mac-compatible?

I’ve read enough for it to be clear that many models simply don’t have Mac drivers, and a number state they aren’t Mac-compatible. An old post to this forum reflects this: http://www.geekzone.co.nz/forums.asp?forumid=47&topicid=6738 

I note that Genius claim much of their range to be Mac-friendly, but the system requirements they provide on their website for all of these is for a 2.33GHz Core 2 Duo processor, which seems a bit unnecessarily stonking for a mere webcam (especially when it says as an alternative they’ll work with a 1.07 GHz Power PC G4!). 

I’ve bought a 1.83 GHz Mac Mini, which doesn’t meet these specs, but do you think they’ve simply made a mistake with the specs? Has anyone had experience with a Genius webcam on a Mac slower than 2.33GHZ? 

Anyway, any advice on any brand of suitable and affordable webcam will be greatly received – would be needing to spend <$100. 

Thanks