I'm building my wheels with the Rigida touring rims from Velo-Orange. They're a bit wider than a racing rim: 700x28 would be fine, maybe 700x25 tires depending on how the size runs. Super Champions would be nice but hard to come by. I thought about using the CR18's but I didn't like the profile. I wanted a pure box section. Here's a picture of the CR18 - this is anodized the polished ones look the same save for the finish:



Here are the Rigidas: