Dreaming ... ok

I'll have multiple cameras and assistants that carry the bags of gear

Keep my D800 for studio work , just add a vertical grip, use the 24-70 f2.8 mostly

Landscaping D800 with 14-24 f2.8, 24-70 f2.8, 70-200vr

Travel alone, A m4/3 camera with a bright wide lens, IS, good high ISO, shoots RAW, and a long zoom, there are many of options and any one works fine, maybe an olympus one, the SOOC are usually outstanding in color and exposure, it will have an EVF

Birding , DX body , D7000 ( followup model when it comes out) with a wicked telephoto , say 300mm f2.8 with 1.4 and 1.7 TC, and one sturdy tripod

A submarine enclosure for the D800 with a fisheye and a couple of flashes