1) Six megapixels will provide excellent photos up to 8 x 10 inches. And very good photos of even larger sizes.
More megapixels are helpful if you do a lot of cropping.
Many of the pros are still using the 4 megapixel full frame DSLR cameras.
2) I think you are correct in selecting something less expensive than the D200 and using the money you save on lens costs.
You should get your hands on the Nikon D70 or the D50 and the Canon 350D and see which feels right for you.
People usually have a preference for one or the other just by handling the cameras.
And never ask, "which is better - Nikon or Canon".
That will only refuel the argument that has been going on for well over 50 years.
Looking for recommendation on which of these three highly rated cameras I should select.
I am an amateur photographer and have done some journo work for a travel magazine in South Africa (newsprint) where pix were reprinted to 4" x 5.5". Most of work features cultural ceremonies and personal portraits (indoor low light and outdoor high contrast light). Not much landscape.
1) Do I need more than 6 megapixels?
2) D200 has room to grow into, but I feel that money may be better spent on lenses for one of other cameras.
Thanks for your insight.