StarTech is a fantastic brand. I'd go with that card without hesitation, if it's in your budget. You might have better luck with FireWire 800. It's a newer interface, so the cards will be more current ...

Last year’s introduction of the Power Mac G5 made USB 2.0 ports standard issue. These ports complement FireWire for the connection of DV cameras, hard drives, scanners, and a variety of input devices.

3 external, 1 shared internal FireWire400 port, with supported data transfer rates up to 400 Mbps Compliant with IEEE 1394a 2000 as well as 1394-1995 standards Includes Low Profile installation ...