I am in the process of putting a document together all about the b&w conversion workflow I use.
It will be a PDF document for download. It will cover form the capture stage right thru to the printing stage. You will need the following programs to do this workflow and funny that they are both from Adobe.
Lightroom and Photoshop either PC or Mac will do. The screen shots will be from a Mac but they are the same on a PC. So stay tuned and all my secrets will be revealed.