Lemme keep this zombie alive a little longer:

I'm looking for a 26" rim for a rigid mtb tourer I'm building. I'm going to ride it on a little pavement and a lot of dirt roads, some of which are pretty lousy with a lot of washboarding, rocks, etc. Is the CR-18 beefy enough for that? If not, what other relatively inexpensive rims do people have good experience with? I weigh about 170 and will probably have b/w 20 and 60 pounds of gear with me and don't have a big budget for this build.