I've heard that injecting full-strength roundup directly into the canes will do the trick. The problem is if the bamboo is widespread you have to get rid of all of it or it will keep coming back.

This article has some other suggestions:
http://www.ehow.com/how_172213_rid-bamboo.html

were I in your situation, I would post this message on the bamboo forum. There you will get many responses from people willing to trade for the bamboo or better advise on how to get rid of it. My best guess is that you will likely have to dig up much of the rootmass as trying to inject roundup into the culms will prove futile in eradicating the majority of the rootmass of the plant

What zone are you in?

~Chills