I am amazed that you have found problems with exposure on the K10D samples you tried. I have had mine for a few weeks and spent last week in Yorkshire photographing my daughter's wedding and shots of the surrounding beauty spots et all. I have not had a single bad exposure. All spot on. Were you shooting RAW? Did you check to make sure someone hadn't dialled in some exposure compensation before you used it? Have a look at my photos on the Exhibition Lounge and the Appraisal gallery, taken in Beamish. My only concern is the one raised by Damien in his test. Out of focus highlights, especially small ones, turn out as soft circles on the photo and have to be clones away or have Gaussian Blur added to soften them. I am hoping Pentax will sort this out with a firmware upgrade. The build quality is excellent and the camera feels right to use. The Hyper-Program mode, which can be altered to Av or Sv at the turn of a wheel is wonderful (on my Z1-P as well). May I suggest you have another look before you decide.