Vista should have generic drivers for the FireWire PCI add-in card. they do not write any more about Vista compatibility on firewire cards, because, nearly 100% of the motherboard do come with FireWire chip installed on board. as older system with windoes 98, Me, 2000 dont had this pre-installed feature, so they built extra cards. however, I am pretty sure, any FireWire add-in will work perfect with Vista. btw, how come your new system isnt coming with a FireWire? is a brand new system? also, check out IEEE 1394 (this is another name of FireWire) as some vendors may complicate things
putting impression on buyer, ohh, something new I am paying for.