I've investigated this issue on several fronts, from apple's pdf's to the nsa's section on securing mac os x 10.3 and up. it all boils down to obtaining the key and the card containing the key...
is there a solution that's workable for a single mac, as everything i seem to come across boils down to solutions that are intended for large networks and businesses with an array of networked computers and components.
and of course the mac requires a secure id card reader, which is easily found...
any suggestions on this sort of thing in an environment that is just your standalone mac at home?