I am expecting to pick up my D700 this week. Was wondering which lens to mate it with. The 24-70 is mated to my D3 and also the weight is a bit restrictive. Should I get a 24-120 or use my 24-85/4.5 with it or get the 28-300 ? Just need a general purpose use lens , with least weight as am trying to keep this combo light. Fellow users on this forum which lens do you use all/most of the time on your D700 ?