How much of an upgrade would a d200 be from a d40 for image quality ?
Also how good is te D200 in 2010 terms, because i know its old but ia it still any good.
Also i have seen quite a near mint examples for around <500-so would it be a worthwhile upgrade or should i spend ages longer (i have a limited budget) and get a D300 (kinda overlaps my other thread, sorry)
I shoot mainly landscapes and wildlife

Or to whack in another option, should i stick with the D40 and get a Sigma 50-500mm so i can get up clost to wildlife