I purchased a K200d on May 30, 2008 and 4 months later I added a K20d. It took me longer to warm up to the K20d. What I like about the K20d over the K200d is the dual wheels. A distant second is the shutter knob. Following that is the pentaprism. However, the K20d is bigger than the K200d plus the live view is next to worthless. The jpeg in camera is crap compared to the K200d which may not be a big deal for someone that shoots raw all the time. Both are weather sealed. They have made a dynamic duo for me the past ~ 3 years.
The k20d as ~ 14mp CMOS sensor and the K200d has a 10mp ccd sensor. I like the sensor in the later better. In fact I picked the K200d over the K10d because of the sensor even though they have the same sensor but improved upon in the k200d. That meant giving up the dual wheels.
I think it would take the K-5 to be a significant improvement over either the k200d or K20d. The K-7 does have a magnesium shell and usable live view.
Last edited by Blue; 08-15-2011 at 12:42 PM.