Vista readyboost question on best USB 2.0 SD card reader

I am looking to grab up a new card reader, internal or external, does not really matter. What I have read indicates success of hi speed SD cards working with readyboost is generally related to the SD card reader

I am just wondering if any can give some feedback to an SD card reader that will allow me to use spare SD cards I have laying around with readyboost. I have a OCZ 60x 1GB and some others as well

CK