Not sure if this is the correct section for this post. If not, moderator please move. I have a D90 and have the opportunity to purchase a 17-55 f/2.8 for $900. I would most likely sell my kit lens (17-105 VR). My lens combo would then be: 17-55 f/2.8 DX 35 f/1.8 DX 70-300 VR Please comment on both the price of a (claimed) excellent condition used 17-55 f/2.8 and how the combo of lenses seems for someone who wants a versatile lens kit for some low-light shooting with the ability to get some zoom shots (mainly in daylight) Thanks!