Hi all, wasn't sure where to post this. I do some weddings and some portraits and more pets which include portraits and action. I recently shot some police k9 events and rented the new Nikon 80-400. I loved it and did pretty well in bright daylight hand holding. I bragged about the lens and subsequently, my Dad got me the older version as a birthday gift. The particular used lens he got for $1500 was in rough shape and I had him return it as awkward as I felt. Now, it is in my hands to tell them which lens I would like as a gift the new one isn't an option, nor do I really "need" it. I was thinking of the Sigma 120-400mm f/4.5-5.6 DG OS HSM APO Autofocus Lens for Nikon AF, or Sigma 50-500mm f/4.5-6.3 APO DG OS HSM Lens for Nikon, or Sigma 150-500mm f/5-6.3 DG OS HSM APO Autofocus Lens for Nikon AF My only long zoom right now is a Nikon 70-300 5.6, cheap and old. While the 500 would be nice, I am thinking it is not necessary for what I do. The 400 though could be good for pets in action, not sure it will be very useful for weddings however unless outdoors. Any opinions on these lenses given my usage? I am shooting with D700 Thanks very much!