yes, the market st housing is pretty convenient, and more safe than living elsewhere in newark.  remember, its a city, so take the school apartments with a grain of salt (e.g. homeless people walk by, i think there was a shooting across the street).  its also relatively expensive.  if you have the option, live off campus.  try west orange, bloomfield, montclair, hoboken.  the latter 2 are also more fun (more young professionals, nightlife, etc.).  good luck.