D200 D300

[cwp]

I have been offerd good money for my d200 so do i sell and get the d300
and put two,every one says the d300 is ace but has any one had both in ther hands together and compaired end results side by side.
like how much sharper
how much better is the colour
the only advantage i can see is the iso is far better for graning
the most important part is the photo so if the actual photo is better straight of the camera then its a winner for me
the lenses i use are
nikkor 50 1/4 af
nikkor 60 macro af
nikon 80-400 af vr