Only way around animal testing is human volunteers to test drugs without knowing safety, side effects, etc. Other systems of medical testing are not advanced enough. Most if not all drugs used in humans, all vaccines, and medical techniques were developed in part through animal testing. It is an emotional thing, so facts like these will not help those so opposed to this sort of testing.
I am definitely for this testing, as I appreciate the life-saving advances, and as important and wonderful as animals are, they are not on an equal plane with humans.
Justin