Hi Henry,
It might be worth you calling your local NI Office, as they should be able to do a trade-in for you, where you sell us back your PCMCIA card, and then get that money back off of another DAQ card.
I would suggest looking at PCI M-Series cards, as they can go up to 1.25MS/s with more DIO lines than you have currently (around 48 lines of DIO).
Regards
JamesC
NIUK and Ireland