Local Adjustments and Finishing Touches
The latest versions of Adobe Camera Raw let you use brushes to make local adjustments to your RAW file conversions. The Topaz B&W Effects plug-in has a similar function, so that you can apply enhancements to your conversion locally, rather than globally.
The Finishing Touches menu in the plug-in has controls to add borders, film grain, vignetting, and image toning. The quad toning function is worth a mention, as it lets you select and apply four different color tones to the image.