My good friend Curtis Vallely (Flickr) It calculates how many cans/bottles of many beverages it would take to kill you if consumed in a short period of time:

How much of your favorite energy drink, soda, or caffeinated food would it take to kill you? Take this quick test and find out.

I spent a few minutes and made RagSites.com/death.php. Instead of trying each beverage one by one, this tells you every drink (as long as it isn’t caffeine free.)