I guess this doesn't really count, but...
I Assassin's Creed, I had the angry guards chasing me, and I tried to jump onto a ladder. My finger slipped and I leaped right off the ladder. I turned the mouse quickly to try again, and then I landed facing the wrong way stiff-legged, not crouching on impact. A crusader ran into me and, I kid you not, I launched a mile into the air. I went up for about thirty seconds! (At this point, I had to feel good about my computer, because I could see the entire city of Acre, and I think Jerusalem, and my frame rate didn't noticeably dip at all.) Finally, I reached the top and started the thirty second fall back down...
Into a haystack.
Into a HAYSTACK, about twenty feet away. I survived.
I survived, and the guards couldn't find me. The crusader had knocked me a mile up, and a mile back down, and I escaped the guards. Never had tech problems before or after that...
I can't remember the last time I actually died in a spectacular fashion, though. Sorry.