Approved / Recommended PIV Card Readers
Here’s the master list of approved smartcard reader devices:

http://fips201ep.cio.gov/apl.php

Here are the recommended readers from NIH’s smartcard website:

http://smartcard.nih.gov/PIV_cardreader.htm

Here are the current USB card readers from ActivIdentity:

http://www.actividentity.com/products/authenticationdevices/SmartCardReaders/

Here is where you can buy your own:

http://www.cdwg.com/shop/products/SCM-SCR3310-SMART-card-reader-USB/1058823.aspx

Here is a pocket type from SCM that the techs have used/tested:

http://www.identive-infrastructure.com/en/products-solutions/smart-card-readers-a-terminals/smart-card-readers/scr3500

Here is where you can buy your own:

http://www.cdwg.com/shop/products/SCM-SmartFold-SCR3500-SMART-card-reader-USB/2105806.aspx

Here is the ActivIdentity PCMCIA card:

http://www.cdwg.com/shop/products/ActivIdentity-PCMCIA-Reader-SMART-card-reader-PC-Card/1944468.aspx

Here is the SCM PCMCIA version:

http://www.cdwg.com/shop/products/SCM-SCR243-SMART-card-reader-PC-Card/1056772.aspx

Here is the PIV Card installation file :

PIVCard.exe ( PIV Reader and VPN installation files )