Hi Mr Cat ,You may like to look into a card reader that plugs into the spare Floppy drive space, if you don't have a spare floppy space then you may have to use one of the spaces that are left empty for an additional CD or DVD recorder,most computers will have one.Choose a card reader that caters for every present card, then you will be future proof. The only snag with this method I have suggested is that you have to take the computer sides off to slide in the Card reader and plug the usb lead into one of the usb internal header sockets. But it does keep your desktop tidy.
PC World or Dabs can supply an internal card reader for about £18 or less
Regards Brian