I shoot a lot of sports and a mish-mash of birds, landscapes, macros, some portraits, etc. I've always loved my D300 and D300s, but am ready to upgrade to something with the SAME BODY, but with more bells and whistles such as bluetooth and/or wifi accessibility (and a higher ISO). I only shoot on manual, so the D300 body has a great layout (no fumbling around in Menu to change the shutter, ISO, WB, or to to bracket). What would be a good replacement? (Note: I'm not a pro and a $4,000 camera is way out of my budget.) Any direction would be greatly appreciated.