IEEE1394 multiple connections?

[eloa.labrat]

I hope this is the right place to post this. I'm fairly new to video and I have a big project my church wants taken care of. We are having a big service and the powers that be want the service recorded and streamed live from their website. We already stream live with one camera feed - they want to add one or two more cameras and have each camera a seperate feed for streaming. Can one computer handle something like this? The church's computer has a Firewire PCI card with three IEEE1394 slots - can all three be utilized at the same time? And can those streaming feeds also be recorded to the hard drive for later editing?

Thanks for your help.