I love soda, too...I was hooked on Coke Zero until I realized that it's mostly the carbonation that I like so much (I'm already a big coffee drinker so it's not just the caffeine).
Try the carbonated flavored waters that Wal-Mart has to start to wean you off of soda. They are calorie free, have the same carbonation as soda, fulfill that craving for a sweet drink, and carbonated water has the same hydrating effect as regular water (as long as there is no sodium added, which there isn't with these). Other than that, just drink regular water and coffee.
