CCID is the norm for usb smart card readers. Except for some very old readers, all ccid readers whould work fine with OpenCT.
Once released OpenCT 0.6.5 should fix a problem with some Omnikey Cardman readers.
If you have tested one of these readers, please add a report here.
If openct does not work, Ludovic Rousseau has a driver in ifdhandler format for pcsc-lite at [http://pcsclite.alioth.debian.org/ccid.html]