carb drinks

i know that i need enough carbohydrates to preform at my best but i dont want that pre-training/race cramping. so my question is: what are the best energy drinks that I can use to get those quality carbs that will sustain my efforts during races and training?

thanks.

Maxim or Extran. Both excellent.

http://www.maxim.nl/home.html

http://www.extranusa.com/homefcpu.asp