Want FX but not impressed by D800 build quality

Agree with you completely, although I jump directly from the D200 to the D800 - the D300 came out about 6 months after I bought the D200, and I wasn't about to spring for another camera.

I bought the D800 because the controls are so similar to the D200, and so is the construction.  I had thought about getting the D7000 but hesitated because the controls are quite different from the D200.