Ready to upgrade! Presently shooting with a D2h. Can't make up my mind between a D3 or D300. Don't need video and there is no way I can afford anything new so there u have it. I love the pro body so D300 will get a grip. Most of my glass is not DX so I have that covered. Just really want an updated camera. I shot a lot of race car stuff so it has to be fast. Any suggestion or advise will be greatly appreciated.