Electra Townie 1 + 1986 Schwinn Sprint converted to SS + NorthStar Coral Nexus 7
Wheels, these days, are tougher than they look. I rode Campy Ventos (24F, 26R with some radial spokes) when I was 290! I eventually broke some rear spokes, but the wheels were surprisingly durable considering the stress I put on them.
Cyclocross wheels are designed to take a beating. I've also had good luck with Specialized brand products.