I'm a coffee drinker. In fact I spend quite a bit of money on an espresso setup. Good espresso machine, excellent grinder, and I ship-in fresh roasted beans. There is seriously nothing better than a perfectly pulled shot of espresso, with a perfectly steamed dose of milk with a huge dollop of milk foam. Add in a touch of quality syrup, and thats all folks.
Sometimes I have a regular cup o joe. If I have more than 3 cups of coffee in a day, I'll feel sick. You can't overdo caffeine, it is a drug, and it has horrible side effects. I typically do a cappuccino or two once a day, and skip days.
Nothing like a good coffee buzz in front of the computer.