@Rikuzue bleach your hair until it is white blonde first - i suggest using Clariol Born Blonde Maxi Blonde.. it got my super black dyed hair to a pale yellow in one go!
then get Wella Color Charm Silver Lady toner
It will give your hair that nice silvery color and great sheen
i've seen the Wella toner at sallys beauty, and the Clariol dye you should be able to get at any drugstore that has hair dye
ahh, im glad i can use my 6+ years of doing hair to help people out ^^ lol!