Those minis are awesome - straight off the cover art into pewter!
Not sure about the American editions of the DW novels, but the UK editions (which we're lucky enough to get in Canada) have spectacular covers by Paul Kidby (Kirby? Can't recall or be bothered to Google it), and all of those Discworld minis I've seen so far are straight off his paintings.
Very, very cool. I've no real use for any, but they're still great.