I have found myself in the position of needing to add more FireWire ports to my 1GH TiBook. So it looks like I need to get a FireWire PC Card. I've found a couple of cheap ($29.99) cards at a local electronics store, but the boxes only list Windows requirements. Will these work with my TiBook running OS X? Or do these cards have Windows only firmware? The card would either run an external hard drive for video capture or it would run a digital video camera. From your collective experience, any recommendations? Anything I should avoid? TIA