Got a Wallstreet 300, 512 ram, latest X.

Thinking of buying the keyspan firewire pc card + the apple isight firewire
webcam, but I've read that ichat will not recognize any firewire cam on a
computer under 600mgh (is built into the software?), and perhaps not any
firewire that is not built in.

I expect worst performance with 300mhg, but I suspect that it might be quite
adequate (my configuration is fast enough for me, amazinlgy so). Has anyone
tried what I want to do?