I wouldn't want to know, but I'm definitely making all of my arrangments ahead of time. If you have been through the death of a loved one and the settling of their affairs after, you know what was useful and what should have been done to make things easier on those left behind.
For me, that means making sure I have my financial ducks in a row - working with professionals, keeping my will current, making sure I review those plans as my children grow up. I'm also going to pre-plan some of my final arrangements - this makes it so much easier later on!!! And I'm going to de-clutter this house if it kills me - that was one of the biggest hurdles to overcome when my mother died. Knowing that my girls could more easily deal with the "stuff" left behind will give me great peace of mind.
But no, I wouldn't want to know when and how I die. If it was early and tragic, it would spoil the happy times to come.