Here is my setup on a 1990 Marinoni. 46-42-28 (cool Gipiemme 144bcd triple) with 7sp 12-14-17-20-24-28-34.
I like it. In the city I use the wide range cassette on the middle ring (steps aren't too big!) and the half steps are great when trying to maintain a fast pace.
Btw I was reading in Bicycle Quaterly that the racing bikes of the 50-60s didn't really use the half-step like it seems they did. Apparently they used similar front rings to maintain a good chainline on both ends of the freewheel. Well in certain cases that was the case it seems.
Cyglist: epic granny! Nice