a friend of mine with dark brown hair once bleached her hair at home(I think from a Clairol brand, not sure though) so she could dye it red after, only the bleaching came out really awful--brassy,with greenish and orange tones-- and she had to have it professionally redone.I'm not saying,of course, that this will happen to you, but just to be on the safe side, I have heard it suggested that, if you're natually dark haired, the first time you dramatically lighten your hair you should probably have it professionally done.It's just a suggestion;maybe talk to a haircolorist about it? And do post pics, once your hair is the color you want it!