open box means its a customer return and you will ONLY get the video card itself. i would get the sapphire version, for starters its not open box, and sapphire is the premier brand for making ATI cards IMO
Get the Brisby dual and overclock it, you should be able to top 2.4 no problem. They are both sort of low end but I think the Brisby would overclock really well if you get a good stepping. Stick it to the man.