Downtown St. Paul is buzzing with construction activity, as big office buildings and a new hockey arena go up. First to open will be the one hundred million dollar Lawson Commons. Some of the software company's eleven hundred headquarters staff have already started moving in to the new complex. Lawson's move comes as a reminder that Mayor Norm Coleman's proposal to raise the city sales tax to help pay for a new Twins stadium is not the FIRST time he has aroused controversy over the proper use of city funds.