Smart Cards or SecurID tokens and *BSD?

Yet Another Anonymous Coward asks: "I'm looking for some means of physical user authentication for a web based or java application that will let me run the server on FreeBSD (or any Linux distribution if not available for FreeBSD). SecurID is adequate in theory, but buying non Intel based machines just for it is not an acceptable option, nor is relying on NT for security. Requiring a smart card reader on each potential machine is acceptable if needed. "