Update:
STAY FAR AWAY FROM PRISMGT CHIPSET WIFI CARDS
Recently, all PrismGT cards started using something called SoftMAC which uses the driver to set the MAC address instead of the hardware. This behaviour is not supported in any Linux drivers so far, and even my best attempts to use ndiswrapper were of no use. I now have a Mini-PCI card without a use. Maybe I'll go upgrade someone's laptop that only uses Windows.
On another note, I have ordered an Atheros chipset Mini-PCI card. The Atheros chipset is well supported with the madwifi driver, and I will be coming back here to post the details when I receive that item.