I would like to nominate Marc Molella for the US modder. His builds are always out of the box and original, and all work done by hand. None of this CNC laser computer cut junk that we come to call "modding" today. His most recent build, titled "Back to the Mod", was entered into the CM competition and recognized by all judges. The photo shown below is of it unfinished but it will surely give you an idea of what he is capable of. All work done on the case was by hand.
Following that are also some of his previous and future works shown below.