I went ahead and bought a Nikon 50mm f/1.4G lens. I always wanted a f/1.4. A 24mm, 35mm or 85mm f/1.4 would be $1500-2200 so those are out. Only thing left if the 50mm.
It's $150 more than the f/1.8G version. The 1.8 is a tiny bit sharper in the center but the 1.4 is a tiny-tiny bit sharper in the corners. Overall the 1.8 is a tiny-tiny bit sharper, has a fraction less distortion and less chromatic aberrations. It's so close that individual lens variation could account for the difference. Nearly identical according to photozone.de.
I'm going to give Best Buy a shot. Crazy I know. Bought a couple of filters as well.
-Nikon 50mm
f/1.4G.
-58mm Platinum*
CP filter.
-58mm Platinum*
UV filter.
-1 yr. accidental damage.
$350 + $30 + $20 + $40 +34(tax) = $474.
At least now I won't have such a large "hole" between the 16-35mm and 105mm macro. I also need to ---STOP--- buying stuff at 4:30am. LOL.
*Supposedly semi-decent filters made for Best Buy by Sunpak. We'll see about that.