Smartcards and readers

[Robert J. Hansen]

I'm looking into picking up an OpenPGP smartcard and reader for an OS X
system.  The card itself can be picked up from KernelConcepts, but there
seem to be an awful lot of different readers available.

If anyone has any *direct experience* (not "I heard from my friend's
bowling partner that...") with different readers for OS X systems, I'd
love to hear about them.  Which ones work well, and which are best avoided?