Some more information on Physician Assisted Suicide:
First, here is a link to an excellent resource on how to examine PAS through an ethical framework. It is the University of Washington's Bioethics website. I worked on the site back in 2002/2003. It is geared toward helping medical students learn to handle situations that will likely emerge once they become doctors, but I think the discussion can apply to anyone who is interested in picking apart this topic more fully. And it gives ethical arguments for BOTH SIDES.
Second, one question I have heard raised a lot on other blogs is why proponents of I-1000 don't just call what they are advocating for euthanasia. I'd like to explain that briefly. Euthanasia and PAS are two distinct terms. Euthanasia can be used to describe ending a life in a painless manner, a mercy killing if you will, but a euthanasia is actually performed by the medical personnel. In the case of PAS, a prescription is handed out by the doctor, and pills are given to the patient for the patient to take home and bring about death on their own. I'm not saying one is better than the other, just that there is a technical distinction.