I see that you are from NY. NY will not be following the 2008 version of the NEC for some years to come. In August of 2007, we will most likely be going to the new State Code.
This new State Code as it stands (a slight chance this may change) is complex to follow in Residential wiring.
As it stands for adoption of August 2007:
Residential buildings with a service of 400 amps or less will follow the Residential Code of NYS. Any items not covered in Chapters 32-43 will be referencing the 2002 NEC to “fill in those gaps”.
Remember that the electrician and the inspector will have to be aware of when to apply the RBCNYS and when to reference the NEC version 2002 or 2005.
Residential buildings with a service larger than 400 amps will reference the 2005 NEC in its entirety. Also Multifamily buildings (3 or more family) will reference the 2005 NEC in its entirety.
All other building types (occupancies) will reference the 2005 NEC in its entirety.
I say mass confusion will begin in a few months…leading to most installers using the 2005 NEC as there installation reference.