Funny. I’ve been looking for this too since yesterday and not found a good method :)
Seems though that Duotones are the way (actually Quadtones) but being colour blind can’t work out the
correct colour selections… Thats why I love b+w film lol :)
I messed around in quads and found a very good selenium toning preset.
So no messing around if your doing large batches and you keep colour consistency.
I’m using it for a batch of wedding pics.
For users of CS2 follow these instructions
Best to do all other edits in raw then save as a Tiff
Save your image with existing name and sel at the end.
Go to mode, click on 8 bit channel
click on grayscale
click on dualtones
click on quadtones
click on pantones – there are lots of options but me one version stood out as easily the best
click the last option (Bl 541 513 5773)
click image, mode and click rgb colour
then brighten the image using curves (found the conversion darkened the image more than I wanted)