I love Open Pros, though I've recently been curious about the DT Swiss RR 1.1 and the IRD/Niobium Cadence box section (non-aero) rims, which seem super mega light, which is awesome. All good options for reasonably light wheels and probably strong enough for your purposes. My Open Pros have to deal with me riding 23mm tires through ****ty, pothole filled roads, hopping curbs, locking up, getting stuck in train tracks and all of the abuse that wheels have to deal with in cities, and they're still true. A friend uses the RR 1.1's, and his are also still true after tons of hard riding (he's a cyclocrosser who sometimes forgets he's rocking 23mm tires when he's on his road bike). I'm fairly confident that my Open Pro wheelset could withstand his abuse just as well. I've never used the Niobium/IRD rims, but they have a good rep, and mihlbach and Andre Nickatina on this forum both love them (see above), and they seem to know what's up as far as good components are concerned. I'll probably try them out on my next wheel build.