>You can decouple the shutter from the focus mode on the D7000 >as you could on the D90. You simply assign the AE/AF Lock >button to control focus. Most D90 users I know use this >method as it works great. >
No I am not talking about decoupling the shutter button.
I believe with the more Pro bodies you can choose shutter or focus release priority separately from AF-S and AF-C; where as I believe with the D7000/D90 (like my D80) you only can have shutter release priority with AF-C and focus release priority with AF-S and AF-A.
But I have only scanned the manuals and never used a Pro body so I could be wrong, but that is how I understood the function when I read about it.