Mark1611 wrote: suggest that you consider where you might go in the future
Good point; look at the entire system...what's available & what you might need down the road. The K10D is very new, so getting your hands on one right now might be tough. You should handle one before you buy to compare. If you can find a retailer that hasthem bring a memory cardwith you & take some test photos (with both) to compare at home before you make a purchase. I don't own either model or system so no bias here, but for me the Pentax's two mode dials (vs. one on the Sony) is an advantage as I shoot a lot in manual mode. Being able to change aperture and shutter speed without holding down other buttons or diving into menus saves time. The weather-sealing is nice, not only for moisture but for dust protection as well.