A : Open Image--leave in RGB
B: Make a Hue & Saturation Adj Layer click OK, and set blend mode to COLOR.
C: Make a second Hue & Saturation Adj Layer --set it's Saturation Slider at -100
click OK and blend Mode to NORMAL.
D: Double click on the BOTTOM Hue & Sat Layer Thumbnail,and move the Hue slider of that Layer to adjust the Luminance and RGB color values in true Monochrome.
Once you have the tonal value in the B+W to your liking make a new Layer>Layer New---ABOVE your existing ones and press--
Shift>Option>Command>E Mac (Control>Shift Alt>E PC) to save your finished Print with your existing layers intact below.
Name this Final/etc and print from this Layer.
I agree with the other posters there are indeed other 'fish to fry' and I suggest you take some time to browse the many forums/sites on Color Mgmt/Monitor Calib/etc.
Good Luck and don't be too impatient--Once things come together you'll find PS is a great Program.
Des
