Dan Ackerman explains why your old PC cards probably won't fit in a new laptop.
Iinstead of proprietary connectors, it utilizes the ExpressCard slot.
New and Noteworthy: The Firefox story; An ExpressCard adapter that accepts a PCCard (PCMCIA); more
I need to get wireless Internet on my laptop, but can't find anyone offering ExpressCards.
ExpressCard 1.0 update released for MacBook Pros
New and Noteworthy: Roll-out begins for ExpressCard 34 devices; Windows-Friendly Macs To Boost Apple: Report
New and Noteworthy: Dell offers EV-DO ExpressCard; Parallels system for Macs 'still best'
New and Noteworthy: SATA ExpressCard adapter debuts for MacBook Pro; Apple May Be Low-Hanging Fruit for IT
New and Noteworthy: Microsoft working with Apple to ensure Boot Camp/Vista compatibility?; First EV-DO ExpressCards launching;
MacBook Pro Special Report: FireWire 800 cards for ExpressCard/34 slot on the way