RE: 5'9'' - 125lbs lady needs a 9mm?
Another idea is aJ frame s&w or taurus 5 shot .357 in titaninum or scaninum.
The taurus has the edge because of listing for app 1/2 the price of s&w and the fact that you can get them factory ported. The new taurus guns are way under rated I have a matching pair of .44 titatinum and they shoot great.