For my money I still stand by the "Mechware" SCSI card readers, but scalpers have those all hoarded up now, you've gotta pay around $200 for one, these days. 
Yes, I have the "Mechware" SCSI card reader. It works quite well especially if you have a SCSI controller that can handle LUNS.
Otherwise you are stuck with only the LUN 0 of device or the PCMCIA card reader. Though CF to PCMCIA adapter are fairly easy to come by....
