Yea the sony camera's have firewire out
Seems to me if the video cameras have firewire out you should maybe switch the motherboard to one that has firewire support. I'm thinking it would be better to upload video from camcorder with firewire than memory cards.
Here's a couple of MB's that have firewire support
http://www.newegg.com/Product/Produc...82E16813131620
http://www.newegg.com/Product/Produc...82E16813130291