I think that, although he's used the term "rim", the OP wants a complete wheel. For new production stuff, I'd go for something with an alloy rim and a Shimano cb-e110 hub.
Gowjobs, I have my worries about the new/upcoming s1c... first off, they messed around and spaced it at 116mm. Goobers. Second of all, they've been promoting it for awhile, but I've yet to see any offered for sale. Thirdly, aluminum hubshells mixed with SS coaster brake? Makes me nervous. Last of all, rollers in c/bs are nothing new. That's how Fichtel&sachs/original SA s1c/Perry/Favorit/Velosteel hubs operated. None of these are known for having awesome braking ability, although they do coast well. I'm mostly intrigued by the m10 axle, and I have to admit that I'll have to buy one to see how I like it, plus I cannot resist ano colors....