I recently built a set of wheels for my '93 Santana Visa. I converted to 9 speed, utilizing a Shimano hub (cone and bearings), which required the dropout spacing to be cold-set to 145 mm. I reused the stock front Suzue sealed bearing hub with new Phil bearings. They are laced X4 with 40 spokes, and Dyad rims. I was quite surprised that their weight is very close to the old wheels with their old Wolber rear and Mavic front box section rims. I am sure that any aerodynamic advantage is so small as to be unmeasurable, but they look cool, feel fast, and provide a much needed component upgrade.
The Dyads will not accomidate less then 28 mm tires-I use 28 mm Gatorskins, see no reason for us to go narrower. We weigh about 355 lbs all up and use the bike for mostly local club rides. We only have about 500 miles on them, but they have stayed perfectly true so far.