The local branch of the London Camera Exchange sold me a "JenReader" for £49.50.
Its a Smart Card reader that plugs into the USB port of my laptop or PC and draws its power from the USB. Like Pengineer's kit, it is lightning fast and will download a full card in a few seconds. (Pengineer's USB Okay?)
With it you can also upload images from PC to card although I haven't thought of a reason why I would want to do that. Perhaps to mail them?
The JenReader (German make - find their site) is more expensive from specialist computer suppliers.