The Center for Science in the Public Interest has issued a new report titled: "Taxing sugared beverages would help trim state budget deficits, comsumers' bulging waistlines, and health care costs" (PDF)
The report contains a spreadsheet with numbers for the different states. Here are the numbers for North Carolina:
Budget Deficit (2010) & Potential Revenue from nickel-a-drink* Tax
FY 2010 Budget Gap Annual New Revenue
New Revenue Share of Budget Gap - 4.78%
North Carolina's state obesity rate is 29 percent.
* A drink is defined as a 12 oz. serving