I have the 105 VR and it is a fantastic lens optically. If I had to do it all over again, I would buy the non-VR version, I have used them both and they are optically just about the same. The focusing is better on a D80 with the older non-VR version (the VR version REALLY hunts on a D80 and D40), but then again autofocus is something that isn't that important to me on a macro, since I normally manually focus anyway.
The VR isn't that important either on Macro, since it doesn't work well on Macro subjects.
On my D300, it the VR version does not hunt AT ALL. It is dead on accurate on autofocus.
Optically, the 105 VR is EXTREMELY sharp, it is the sharpest lens I own.
Then again, for $700 it SHOULD be sharp.
I prefer the 105 length over the 60's because I shoot a lot of bugs, and bugs like their space...