Greg,
LOL, you got caught in the rain so now you HAVE to keep the camera , ... good for you

I use single Af point , I get fast accurate AF , no hunting , even the sigma 150 macro , which used to be unusable regarding AF in the D300 is fairly fast and accurate with the D800

Which 85mm f1.8 did you get, the AFS version ?

FYI, Plenty of the D7000 tips from Grandpaw apply to the D800

I tried the 24-70 f2.8, it is great, but huge, heavy and expensive