Or even better...snag a used nomad muvo or whatever it is called. It comes with a 4gb card inside. Take out the card, and junk the rest. Much cheaper than axctually buying it.
That 4gb "card" is a IBM/Hitachi microdrive. This is an ok solution for 16 bit recording, but there are issues if you want to record 24/96. With my PDA rig, the microdrive cannot sustain write speeds fast enough to capture 24/96 for more than 40 minutes or so. I have not played around with the microdrive to know whether it works at 24/96. Also, the microdrive has moving parts, and is more fragile than a CF card.
These prices for 2gb CF cards is amazing. I'll probably pick up a couple.