Noncommutative Chern-Simons gauge theory coupled to nonrelativistic scalars
or spinors is shown to admit the ``exotic'' two-parameter-centrally extended
Galilean symmetry, realized in a unique way consistent with the Seiberg-Witten
map. Nontopological spinor vortices and topological external-field vortices are
constructed by reducing the problem to previously solved self-dual equations.Comment: Updated version: some statements rephrased and further references
added. LaTex, 17 pages, no figure