The majority who replied to the recent AP poll suggested 3-4 cameras would be a satisfactory range. Discounting the 645D, Pentax currently have 2 models, so they really need an entry-level 12MP body, costing about £200, and probably a high-end 20+MP body, say at about £1200. WR on the high-end but not on the entry level. Fixed screen on the entry-level, hinged screen on the high-end. PIC modes on the entry-level, just PASM on the high-end.