I found The Cook Trio through StumbleUpon. A quote from their website:

“Jazz Manouche” or Gypsy Jazz, has a rich history steeped in culture and tradition. This guitar-based music is the only Jazz form whose origins are found outside the United States. It was created and made popular in the 1930’s and 40’s solely by the legendary French gypsy guitarist virtuoso, Django Reinhardt and his Quintette Du Hot Club De France.

You can listen to some of their music at their MySpace-page.