brassy blonde to brown..help pwease!

Hey everyone! First time poster here with a big dilemma...

Ok, my hair is naturally a dirty blondish. for a long time I have been dying it blonde.I currently have like an inch of roots showing and the rest of my hair is blonde with a few different colours of blonde in it and some of the parts close to my roots look brassy blonde.

Now, I want to go brown..a darker brown and get rid of the blonde. something a little darker than my roots colour because I am tired at the moment of roots! I would go get this done professionally but being in college I am dirt poor and cannot afford all that money to get a stylist to fix it....If I am doing it froma box what do you all recomend me doing?

I dont want the dark brown to turn out funny or anything...agh! :(

A qualified professional colourist is always the safest option. If you can't afford one thought, you can use a red filler (available at Sally's) and then use a brown shade of permanent colour.

Here's another method:
http://www.robertcraig.com/weeklytips/4-1-00.html

P.S. This site recommends Robert Craig products, but you can use another brand of permanent colour in a medium golden blonde shade. The important thing is to put some warm pigment into your hair before applying the brown dye. This will prevent your hair from turning blue or green. Always strand test before applying any product to all of your hair.

Best of luck.