  We present template spectra of low-mass (M0-L0) dwarfs derived from over
4,000 Sloan Digital Sky Survey (SDSS) spectra. These composite spectra are
suitable for use as medium-resolution (R ~ 1,800) radial velocity standards. We
report mean spectral properties (molecular bandhead strengths,equivalent
widths) and use the templates to investigate the effects of magnetic activity
and metallicity on the spectroscopic and photometric properties of low-mass
stars.
