What rims to put on my mazda 626?

I own a Black 2000 Mazda 626, and am trying to decide what rims to put on it. I feel either 16" or 18" look the best, overly sized rims look just dumb to me. I don't want them to look stock in any way and would prefer them to be black. The car has no drop or change in original height, and i would like to keep it that way if at all possible. Any suggestions?