Congratulations on choosing to get the D300. I think you made the right decision and I think that I was in error suggesting differently. As you note, the CAM3500 and AF-D probably do trump AF-S and CAM900. With the better Autofocus system, the D300 most likely beats the D50 with any lens. Not to mention all the other areas where the D300 is better. Just don't pick up a 70-200 AF-S and put it on your D300 or AF-S zoom-lens lust will haunt you.73Z1,
This option has been suggested to me before. The extra pixels would be nice when it comes to cropping but that is not at the top of my list. I am not unhappy with my D50 (with the exception of the viewfinder). I guess the question for me is: does AF-S and CAM900 trump CAM3500 and AF-D. In the end getting the shot is the important thing.
I guess I need to do more research.
Thanks for the response.