For employees of the city of Henderson, nothing this budget season is more important than the decision that should be made sometime after 6 p.m. in the conference room at the Municipal Building. At a Finance and Intergovernmental Relations Committee meeting, City Council members are expected to select the health insurance coverage for municipal employees for the year starting July 1. The impact on taxpayers as a whole will be minor compared with the effect on individuals facing a doubling of their deductible. “I’m just grateful to have coverage, period,” police Capt. Charles Crumpler told council members Tuesday.