Just built myself a set of new touring wheels (among others)... Arvon hubs (freewheel only) and Sun CR18 rims to better handle a wider width of tyre (26 by 1.5).

We have had no problem with CR18 rims at all... a great deal of this stems from the quality of the build.

Have also built a lot of wheels on Mavic 319 and 719 hoops with the 719 being many times better and a rim that sets the mark for being strong and relatively light for what it is.