Digital BW, The Print

> i've been using a selective color layer under a desaturate layer
> that allows quite a bit of flexibility to change tones to your taste.

A twist on this is to add a hue/sat adjustment layer (blend mode=color) 
above or below the selective color layer (or in place of it, aka 
Russell Brown method) to enable further adjustments by color.

Too many methods, too little time!