Here's Bill Buckley on the ethics of watching the Saddam hanging video. I watched it. I suppose what surprised me most was the effectiveness of hanging: Saddam was dead as a doornail five seconds after the trap dropped.
This, of course, is not the first death video on Internet; you'll remember that when Nick Berg was murdered, the killers released the video. I didn't watch it, nor do I have any plan to watch anything of the sort.
I had no problem watching Saddam hang, though. I suppose the difference is that I hated, feared, and despised Saddam, and I'm glad he's dead.