Hi All,
Having debated until July 2014, I eventually dug deep into my conscience and added the K-3 to my K-7 and P30n in my camera bag. I was going to move from Pentax to Canon or Nikon but the K-3 is at least as good as the Canon and Nikon CMOS DSLRs. The only reason to make the move would have been for the full frame sensor versions of Canon or Nikon. However, I cannot justify the price differential to move to full frame. I am very happy with the K-3 with the stock 18-135mm lens. I have other Pentax lenses but these days, I find that the Pentax 18-135, with a Sigma 70-300 and an ageing Pentax FA f1.8 50mm SLR lens; not forgetting the K-7s stock lens at 18-55mm that I rarely use now that I have the 18-135,which is much better.
Alan.