Need help picking a new camera! UPGRADE

My Canon kit 450D/s90; Canon lenses 18-55 IS, 70-210/3.5-4.5....Nikon kit: D610; 28-105/3.5-4.5, 75-300/4.5-5.6 AF, 50/1.8D Nikkors, Tamron 80-210; MF Nikkors: 50/2K, 50/1.4 AI-S, 50/1.8 SeriesE, 60/2.8 Micro Nikkor (AF locked), 85mm/1.8K-AI, 105/2.5 AIS/P.C, 135/2.8K/Q.C, 180/2.8 ED, 200/4Q/AIS, 300/4.5H-AI, ++ Tamron 70-210/3.8-4, Vivitar/Kiron 28/2, ser.1 70-210/3.5, ser.1 28-90; Vivitar/Komine and Samyang 28/2.8; 35mm Nikon F/FM/FE2, Rebel 2K...HTC RE UWA camera

kitacanon wrote in post #11212669
...and me, I'm looking to get a Nikon D40 for all my Nikkors!

The D40 won't work with the autofocus lenses that require the screw drive.

Hopefully you don't have any of those...

"There are some things that money can't buy, but they aren't Ls and aren't worth having" -- Shooter-boy
Canon: 2 x 7D, Sigma 17-50 f/2.8 OS, 55-250 IS, Sigma 8-16, 24-105L, Sigma 50/1.4, other assorted primes, and a 430EX.
Nikon: D750, D600, 24-85 VR, 50 f/1.8G, 85 f/1.8G, Tamron 24-70 VC, Tamron 70-300 VC.