Digital BW, The Print

Hi,

I realize that my question might not be suited for this forum, so 
please point me in the right direction if the following is 
inappropriate for this group.

I am trying to print a portrait of a head shot. My goal is to make the
head shot warm or sepia (possibly somewhere in between). But the
remaining backround of the image I would like to be closer to a 
neutral black. That is I don't want the background to have hints of 
sepia or warm, but rather I want it to be black.

Can someone put me in the right direction?

I am testing this with QTR. My dilema:

I know what to do within PS, editing in RGB to get the desired 
effect.  However, QTR requires a grey scale image.  The minute I 
convert to GS I will lose my tones.  How do I tell QTR the different 
tones in the specific areas.

Also, is it possible to see a soft proof of this particular 
combination before I print. Yes, I have the soft proofs provided by 
Carl Schofield.

Thanks,
David