I am sorry to announce that I am leaving the Pentax crowd and going to a Canon 7D. It was a difficult decision, especially given my investment in Pentax, and it was primarily driven by the availability of big bird lenses. I will be putting it all up for sale: K20, K10, DA*300, Sigma 50-500, (2) 540 FGZ flashes, Pentax 10-17, Pentax 18-85, Sigma 55-300 (?), battery grip Tamron 1.4x TC, Phoenix 2.x TC. I've always enjoyed this group. I have visited the "other" group, trying to decide what to buy, and it isn't the same. Pentax people are different: in a good way.