As hefty school taxes remain an unsolved problem in Pennsylvania, lawmakers are about to study ways to consolidate more school services-and even look at the controversial notion of mergin district administrations into countywide systems. State Rep. Stan Saylor, R-Windsor Township, is prodding lawmakers to consider countywide systems, saying it works in states such as Maryland. The House Education Committee expects to hold public hearings in the coming months. Meanwhile Rep. Bev Mackereth,R-Spring Grove, has asked House leaders to fund a study from next year's budget to examine the issue, saying lawmakers need to do their homework before eyeing a bill....