Pareto Chart

I am trying to do some 80/20 analysis of a set of events, i.e. the number of different operative procedures Dr. X does. The intent is to focus on the important "many" rather than the less important "few." To do that I want to have a chart with bars of X1, X2, X3, etc. being the different procedures in descending frequency. Then I want to overlay a line graph showing the cumulative percentage of the procedures using the same data as the primary chart. I don't have any problem crunching the numbers, I just don't know how to put the info on one chart. Any suggestions? Thanks.