  We report the temperature($T$) and perpendicular magnetic field($B$)
dependence of the Hall resistivity $\rho_{xy}(B)$ of dilute metallic
two-dimensional(2D) holes in GaAs over a broad range of
temperature(0.02-1.25K). The low $B$ Hall coefficient, $R_H$, is found to be
enhanced when $T$ decreases. Strong magnetic fields further enhance the slope
of $\rho_{xy}(B)$ at all temperatures studied. Coulomb interaction corrections
of a Fermi liquid(FL) in the ballistic regime can not explain the enhancement
of $\rho_{xy}$ which occurs in the same regime as the anomalous metallic
longitudinal conductivity. In particular, although the metallic conductivity in
2D systems has been attributed to electron interactions in a FL, these same
interactions should reduce, {\it not enhance} the slope of $\rho_{xy}(B)$ as
$T$ decreases and/or $B$ increases.
