New version of Bibble adds B&W conversion

I really like the stuff their doing with Bibble, adding all sorts of plugins, including this B&W conversion plug in. I find the whole UI a little bit to get used to but if you're not tied to any one RAW convertor you should download the demo

Bibble Labs - Professional Photo-Manipulation Software: "With Bibble 4.8 is a new plugin - Black And White conversion. This plugin allows you to convert an image to Black and White with much more control that simple desaturation - you can choose what color channels to use. But the real power in the plugin is in re-adding one or two colors back into the image."