There's a drink like that already out.
Higher alcohol content, it's called "Sparks". Comes in an orange/silver can so it looks like an energy drink.
7.2% malt liqour, mixed with all of that other energy stuff.
Some friends and I tried it out one night.
Indeed, pumped up and drunk is not so much a good idea. It is fun, right up to the point the energy wears off and you are realise you are ****ing plastered.
-SW