Well, I guess it can't. I tried it and it locks up after 20 sec. I generally use LaCie 250G drives that have FW 800, 400 and USB connections, but I don't know what speed the USB port is putting through. So I guess a PCMIA FW card is needed as you say. Thanks.
Thing to remember is that in every protocol there is latency issues. Just because FW800 says "800", you won't, in real life, get "800" out of it. It's just technically able to do that in a perfect world. Same for Ethernet, USB, SCSI, anything.
