IOXperts have released a beta version of a universal Mac OS X video driver for FireWire WebCams. The 1.0 beta version is compatible with many popular FireWire Webcams such as FireWire Direct DV and the Orange Micro iBOT to name a few. According to IOXperts:
IOXperts, Inc. announced today that version 1.0 of its universal Mac OS X video driver for FireWire WebCams has been released for public beta testing. This is the first and only driver available that gives Mac OS X users access to a wide array of low-cost cameras, including the ADS PYRO WebCam, FireWire Direct DV WebCam, Orange Micro iBOT™, and iRez StealthFire™.
You can find more information about the beta version of the universal Mac OS X video driver for FireWire at the IOXperts Web site. The beta version 1.0 of the universal Mac OS X video driver is available for US$14.95.