coastline, boundary or lat/lon grid data?

[Jeff de La Beaujardiere]

As far as I can tell, MapServer does not come with any vector data like 
coastlines, boundaries, or lat/lon grid. I need to provide overlays of 
such vectors over my satellite imagery as an option. I could get a 
layer(s) from another WMS, but it would be useful to have and serve that 
information locally. Data resolution only needs to be good enough for 
global and regional views.

Does anybody have these data in a format that MapServer could support, 
and ideally the relevant snippet of mapfile? Here are the options in my 
current build:
 > ./mapserv -v
MapServer version 4.4.2 OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP SUPPORTS=PROJ 
SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER INPUT=TIFF INPUT=GDAL INPUT=SHAPEFILE

Thanks,
Jeff DLB