Heh I was the same way.  First time my mom takes 
me to get highlights put in the stylist yanks 
out a grey hair.  I was 14 at the time, I might 
have more grey hairs(according to mom, my 
grandpa was white by thirty, thogh she's just 
starting to grey now at 50) But I haven't seen 
my naturaly hair color since I was 14.  sorry I 
don't have a silver hair bad-ass to show.
On an odd note there have been times when I 
wanted to bleach my hair as light as it would 
go, then dye it silvery white with either blue 
streaks or blue tips, but I'm scared of what all 
that bleaching would do.