I know the Nikon D200 is at an attractive price and also offers weatherproofing, but check this out.
Does your D200 leak moisture inside? [Page 1]: Nikon D3 - D1 / D700 Forum: Digital Photography Review
You are not afraid of taking your K20D in the rain, or are you?
Anyway, I am obliged to tell you guys that I will be holding off on Pentax for now- at least till summertime.
I bought new glass for my silly little Canon Xti - 70-200 f/4L IS and will be enjoying it for a while. The lens is weatherproof but the body is not.
One thing is for sure though, I have become a Pentax fan - thank you for this community. I will continue to follow Pentax news, rumors, blogs, etc, and still have it as a goal to become a Pentaxian with a Pentax DSLR.