I once used a firewire adapter on a laptop, but that was before they went to the newer card slots which also made my old Echo laptop card obsolete. I think I still have it laying around somewhere.
In that configuration (the old card slot) it worked fine. From the info that Jim posted it sounds like a bit of a crap shoot to go that route, but who knows? Those adapters aren't all that espensive. It might work ok and be worth a try at least.
It really is a shame that support for firewire seems to be drying up for the PC. Originally I think it was more intended for video and it turned out to be a nice solution for audio as well.
I prefer firewire to usb but the way things seem to be going. I might have to switch over to usb on my next interface.