I have used Nik software plugins for a few years, I particularly like the Silver Efex Pro and use it for most of my Black and White digital images. I have found it to be easy to use and a good way for me to create digital images that are similar to my silver gelatin prints from negatives. Google bought Nik a while back and this past March they made the Nik software plugins free to everyone. Works with PS, Lightroom, & Elements.
Here is the link to download the plug ins: https://www.google.com/nikcollection