Thinking of dying my hurr. thoughts(:?

I'm a natural dirtyish blonde, but not by much. I first dyed my hair red at home in around October, and then professionally in December. It was WAY too bright at first but it's faded to a kinda orange-ish red. (I've been keeping up with roots, of course.) so here's how it looks at the... show more I'm a natural dirtyish blonde, but not by much. I first dyed my hair red at home in around October, and then professionally in December. It was WAY too bright at first but it's faded to a kinda orange-ish red. (I've been keeping up with roots, of course.) so here's how it looks at the moment:
http://i224.photobucket.com/albums/dd201...
and I'm thinking of going something like this:
http://images.teamsugar.com/files/upl1/1...

are there any things I should keep in mind, or any difficulties going from my current color to this one? Any tips, especially from experience, are appreciated. And I'm going to a salon to do it.
thanks in advance. :)
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