OK, so it's an old program. But now it is free (I originally purchased it a loooong time ago), and I still have a soft spot for it. Sure, the interface is quirky. But it works, has all the features I want, and did I mention that it is free?
I commend Econ for making this nice piece of software available to everyone. If your Mac has a built-in camera there is a good chance that you can use this software. The 'Security Camera' option alone is hilarious, useful, and well worth the download.
For those that think that they don't have an FTP server remember that your Mac can and will happily serve as such. But Image Caster can also deliver to a local file, creating a time-lapse movie if you want to.