[djmcmath]

A 2oz shot of espresso runs about 80mg of caffeine, depending on how you pull it. A normal sized cup of brewed coffee (depending on your definition of "normal," and again on brewing process) contains roughly 150mg. Seems that Dew hits the charts at 120mg per can, or so, but I don't drink enough Dew to rate it accurately. Either way, that means that my morning 4-shot latte carries a whopping 320mg, or a little less than three Dew's, give or take.

Anyhow, I'm not sure what you poor blokes are referring to by "too much caffeine." While I was doing post-grad nuclear power study, I was known to pull as many as 16 shots in a day with no ill effects. I mean, aside from the fact that I never slept, I really just closed my eyes and twitched more slowly. My resting pulse was usually between 60 and 80 beats per minute, though, so I don't think that it could realistically have been effected. Somehow, it seemed like everyone else was moving very slowly, though. How odd.