I think Jon is right about the prime Limiteds. I suspect sealing at the lens mount might be all one really needs unless working in a hurricane or the Sahara Desert. I have to wonder why no one in the aftermarket has come up with inexpensive, one-time use gaskets for lens mounts.
As for weather-resistant DSLRs, at least Pentax has two: the K-5 and the K-7... and the K-7 body is now well under $1000. I'm tempted to go for a K-7, but since my K200D is already weather resistant, perhaps the K-r would make more sense. That way, I'd gain much better high-ISO performance and still have a weather-resistant body as a back-up when I need it.
Last edited by Biro; 09-29-2010 at 07:32 PM.