If you don't watch the free intro videos on Creative Live, you don't know what greatness you're missing. Jared Platt did Lightroom videos for Photoshop Week they had a few weeks back. Excellent stuff. Next week he is doing some advanced workflow for 3 DAYS! I may have to take some time off work. He can get really techie on some the stuff he does but a lot of it is just plain good. I edited this photo from what I learned.
First, go to the Hue Sat Panel and reduce each saturation slider to no color. Then I made a preset for that so it wouldn't take so long to repeat the process. Next I pulled some color back into the flower by sliding the orange and yellow slides back a bit until I liked the result. kk_culligan was added and set at Multiply 81%. The original is below. I like the steel grey coldness of this edit with just a touch of warmth for contrast.
So Kim's theme is color for this week, but mine is not bold and bright, but and an option of what you can do with your color.