Newtown First Selectman Dan Rosenthal says a contractor is evaluating Town Hall South, the old police station building, but there's nothing official to report right now on a potential sale of the building.  He says if this doesn't bear fruit, the town will likely go the broker route.  Right now, Rosenthal says it looks like something promising, along the lines of what people would be happy with.  A sign is posted on the building noting that the Legislative Council and Board of Selectmen voted to put 3 Main Street up for sale.