Last year, a company put up a HD/SDI 35 express card on it's site and I seem to recall it was cancelled? I wonder if anyone knows anything more about this card? Is there something on the market like this now?

It doesn't ring a bell, but the Matrix MXO2 does HD SDI i/o via a ExpressCard (and PCI Express for the MBP). It is mac only though (and not yet released, but close).

George/