This June (2009) there seems to be the belief from some watching upcoming Nikon DSLRs that the Nikon D400 is coming soon. And it will be FX not DX. I for one think this would be amazingly inconsistent for the Nikon nomenclature. And also somewhat earlier in release than I would expect. The Nikon D400 would logically update the wonderful D300 and add features found on the D90 which also should be upgraded on this camera. It should NOT be a upgrade to the D700! That logically would be a Nikon D800. I would hope to buy both a Nikon D400 in DX with video (rolling shutter capability and a Nikon D800 with the same but in FX. The fact is I would make the purchase of the DX Nikon D400 as soon as I could get one and do some real soul searching and probably decide against the D800 do to the fact that based on the D300s stellar performance for me (and many others). The fact is the D300 has been very successful for Nikon.
All the reviews (including my own) rate that camera as one of the best ever. It is my all time favorite camera. I have owned cameras that just one of several lenses cost more than my D300 system! Yet the Nikon D300 ran circles around all of the rest! We hope for the same better
performance from the D400 when it comes out. Should it be FX?? I believe NOT! I strongly believe in FX. I am just doing to well with DX to switch now.......and unlike many I already own great Nikkor FX glass right now. I would have to add one new FX lens to make the switch. That lens would have to be a mid-range zoom. Bottom line? I am putting my money and first next purchase on a Nikon D400 in DX. I also hope it comes with a Nikon kit lens of the 18-105VR which I have used a lot on Nikon D90 and I don't want or need another 18-200 VR. I like the 18-200VR just don't want another!