I don't care what your stand on abortion is, partial-birth abortions are barbaric, and there is no good reason to perform them on a healthy baby and mother.
Frankly though, the only way I can see abortion being percieved as a black-and-white issue is under a religious basis. As the primary "ban all abortions" argument is religious in nature, it is something that should be left up to the individuals, not the government.
That said, the only good reason for having an abortion after the 1st trimester is if the mothers health is in danger. (Being lazy doesn't count, being indecisive probably means you shouldn't have one)