The Linksys WPC 11 ver. 3 is a PRISM I card (uses the orinico_cs driver) and is automatically detected and works on every Linux/BSD I've used it on(a lot, including MDK)
The ver. 4 is what is around now though, which is a totally different chipset that is not recognized. You can usually find the ver. 3 cards on Ebay and such.. but this a great card, well made, and relatively inexpensive.