If you love black-and-white images, you'll love Nik Software's Silver Efex Pro. This plug-in offers what many of my photographer friends consider to be the best method of converting a color image into a beautiful black-and-white image.
Many effects are available - from standard to artistic.
Try the different color filters (available with a click) to see how they change the tones in your image. You'll be surprised at the different end-results - as were novice film photographers when they used different color filters over their lens (red for darkening a blue sky, yellow for more pleasing skin tones, etc.)
You can learn more about Nik Software's Silver Efex Pro and other plug-ins – and get discounts on some plug-ins – at the Plug-in Experience.
Explore the Light,