All you want is one that reads the type you use and a few other, popular types in case a friend drops by. I have a combo card reader and floppy drive, but it can't read the new HC cards, so I got a little, external reader from Media Gear (model MGTR-910 - called the "Ultra AllCards USB2.0. Got it cheap via WalMart's online store w/ free ship to my local store. Works well with my old standard SD cards and with my new HC cards. Seems to move the data pretty quick, but I seldom have to transfer more than a few pix at a time.I guess they were clearancing that item as I don't see it on their site any more. Most of the mini and micro chips will require an adapter to work with most readers - only buy that type of cards that come with adapters (unless you already have an adapter).
.bh.