I'm about to buy a D700 & need to decide on a good all rounder lens to buy with it. I mainly take landscape (sme of which I sell) plus photos of the grandchildren (which I don't!) so feel that something like a 25-200 would be ideal. Buying the D700 is going to be a stretch so I can't afford too much on the lens but at the same time don't warn to regret the choice afterwards. Any suggestions would be greatly appreciated!