I have the K10D and use *.dng raw, so that is not a problem either. The K200 is similar to the K10D, it has the same sensor, but only has one control wheel on the body, so moving to Aperture or Shutter priority mode is not so easy. The GX-10 is a good buy.

I am not going to buy the K20D, for me the live view is too Micky Mouse. I will wait for the next version, which may be a full frame of course??? or at least a better version of the K20D with upgraded live view.

But who knows? Certainly not I.