I used the 28-105 for macro on the D200 and not much at all with the D300. I had the 18-200 by the time the D300 arrived, and find that range to be better for walking around. I was very pleasantly surprised with the image quality from that 28-105 lens when I looked at the photos on my computer monitor last night.
It seems that the 28-105 is enjoying a rebirth from several posts I have seen here and at another forum. I recommend anybody who isn't too hung up being seen with a $3000 camera with a $150 lens snag a 28-105 while the getting is still good. (I suspect any nikonphiles who have spent $1700 or whatever for a 24-70 would be slow to give the 28-105 its due, but seeing how that lens functions on the D700 I would not spend my money for the 24-70 given I have that range covered well enough.)
That said, I am faced with re-thinking my humble lenses now that I have a camera that I can live happily with no matter what gets released by Nikon next month. or next year. I can't seem Nikon having another camera body customer in me for a long while now. (NAS denial, I know.)
I'm loving how the 20 2.8 and the 50 1.8 work on the camera, and have not yet tried the Tokina 100-300 F4 on it. But I want to have a few more lenses that are "higher" wuality. (Although that Tokina is very nice except for its artillery weight and size.)
Regardless, having film-like lens behavior in a DSLR with low light capabilities that this D700 produces is a case of love at first sight.
I left 35 MM film behind for a 6-year divorce-limited detour through P&S canon powershot (the EX TOOK my film camera with her), my first exposure to digital, and when I moved to DX it never felt "right."
The D700 feels right. The D300 was a giant leap forward in attainable good-image quality, and the D700 puts me right back where I am comfortable again in terms of camera behavior.
I have seen respected reviewers say low light performance is a "faux" reason for getting the D700. I will be curious to see how this reviewer revisits that claim.
Now to find a larger hard drive and get set up for RAID....I'm going to need it.