I used to be the exact same way with Dr. Pepper and Coke... I rented Supersize Me about 3 months ago and that actually has helped cut my addiction pretty much cold turkey. I wasn't a 2-3 caser /day but I'd take down about 6 cokes/DPs per day.

Look at Ralph Davis these days. He said he quit drinking soda and he's REALLY slimmed down!