In addition, I believe it is mandatory to get, and use, Nikon Capture. One Canon user said he is so tempted to go Nikon from Canon just because of Capture which he saw his Nikonian friend using and demonstrating.
And of course, Thom Hogan's e-book
Regarding the question, for portraits TO BE PRINTED, use the Adobe Color Space, Color Mode II. I have been mistaken using sRGB previously (darn Ken Rockwell !), the Adobe Color Space is the way to go. Took some new shots today of various stuff, and Adobe is indeed the correct one. No wonder my friend said he preferred the shots from my $600 point-and-shoot Canon with 2.8 lens to my high-end Nikon shots, he found them more real with correct colors. Took shots again of his stuff with Adobe Color Space, and he will be a Nikon user soon

:devil: