We own(nearly) all Pentax DSLR models and from where I stand, the K200D is most likely the most versatile of the bunch.
Here are a few highlights the K200 has over it's predecessor:
- CCD + PRIME + DDR2 System
- Dust and water protection
- Dust Alert
- Better Display
- Improved DR
- Optional Grip(with seals)
- Dedicated RAW Button
- Improved Power management
- Digital Preview
Having said this, our K200 has become our dedicated vintage manual camera, we've tried many brands and models over the years and this unit has come out on top as a the only DSLR that seems up to the task of handling manual shooting in a versatile and productive way.
My two cents anyways.
Cheers
PS. It took a katzeye(with optibright) to get the unit up to snuff on the viewfinder end of things.