Should you just run for "color"? Going grey doesn't mean you have to color....if you just have a few grey hairs you can add highlights.
Permanent color is for people who don't want to see grey at all.
There are also products where you can just "paint" color on.
Also, Amy recommends using eye shadow to temporarily cover that grey. Waterproof mascara also works!
For more of Amy's tips, please visit her blog: http://www.amybranan.blogspot.com.