Some of the smallest local governments in Minnesota, the townships, are getting ready for major changes in the state's tax structure. Many are still trying to work out how the reforms will affect taxpayers. Last summer's special legislative session resulted in a shift in philosophy. The state will now pick up nearly 80 percent in public school costs. But for some cities and townships, the reforms mean the loss of millions of dollars in state aid. As Minnesota Public Radio's Tom Robertson reports, those small governments will have to raise property taxes to maintain services. {