The Nikon D7000 has a nice feature that Canon just gives you when your camera’s name starts with 1D. In other words: in the higher price classes.
Here is the Nikon version of spot metering:
First off, if you spot meter with the Nikon D7000 a circle with the size of 2,5% of the sensor is used to spot meter. If you are using a lens that has its own CPU in it, this circle will follow the focus point you are using.
This is very convenient as I said as you don’t have to bother with recomposing just for the metering. I know people who always use the center AF-point and then recompose, so for those people it doesn’t really makes a difference that the Nikon D7000 has this ability. For all other users it has!
Here is the Canon version:
If one of the Canon EOS 1D models would break your bank and you not yet going full frame but with the Canon EOS 7D you have a circle with the size of 2,3% of the sensor right in the middle of it for the spot metering.
So if you want to spot meter you first have to do this via the center point of the sensor. This is of course where the center AF point is. After you did your metering you would have to lock it and recompose. Then you can chose an AF-point of your liking and take your picture with the right measuring when it comes to spot metering.
Even Bambi Cantrell who is shooting with a Canon 1D series camera is just using her center focus point (and she uses matrix metering as well), so she belongs to the group of people where this feature doesn’t make a difference in her workflow. You see, you are in very good company.
I hope this brought a little light in the dark if you where wondering where the metering takes place when you are spot metering.
Have a good day shooting!