Nikon: New Body or New Lens? Usually it's new lens but let me know your thoughts?

I'd like to get a good primary camera for wedding photography. I have shot with my D7000, primarily using prime (85mm, 35mm and a 18mm-100mm) and have rented a 70-200 f2.8 (on my body 95% of the time). I also use a fisheye… Now that I have some extra funds - - would you invest in buying the 70-200mm VRII, purchase a D800 with gigantic file size but awesome clarity and great ISO performance or the D600… So Lens or Body?

Always lens. The D800 is overkill. But if you are going for a full frame camera you will need a full frame midrange zoom. I'd get a 24-70mm 2.8 for weddings because you don't often have time or space to compose with primes.

The D600 or D800 would be very nice upgrades, going from DX to FX. But two of the three lenses you shoot with regularly, (assuming they're the 35mm f/1.8 and 18-200mm) are DX optics and would force your D600 to drop back to DX mode.

Getting the D600 (about $2000) would leave you room to upgrade your optics as that would save you a about $1000 over the D800.

If you are truly using the 70-200mm f/2.8 so much, then buying one may be a wiser investment. You could also so well finding a first gen 70-200mm, as well.