  The strength and effect of Coulomb correlations in the (superconducting when
hydrated) x~1/3 regime of Na(x)CoO(2) have been evaluated using the correlated
band theory LDA+U method. Our results, neglecting quantum fluctuations, are:
(1) there is a critical $U_{c}$ = 3 eV, above which charge ordering occurs at
x=1/3, (2) in this charge-ordered state, antiferromagnetic coupling is favored
over ferromagnetic, while below $U_{c}$, ferromagnetism is favored; and (3)
carrier conduction behavior should be very asymmetric for dopings away from
x=1/3. For x < 1/3, correlated hopping of parallel spin pairs is favored,
suggesting a triplet superconducting phase.
