As a IST major, many all night programming sessions have been fueled by energy drinks. As such, I have tried many of them. My current one of choice is Monster. It seems to go down smoother than Rockstar, which was my previous drink of choice. I also love Lost-5-0, which is half energy drink half Orange Juice. It gives me a good morning bump AND it feels like I'm drinking something good for me. If you're in an area that has QuickTrips, their "Donkey Kick" and "Rooster Booster" drinks are good for the price. Just don't drink a whole bunch of energy drinks then try and sleep. Oh boy did I have some weird dreams that night.