Trying to get fallout 3

Hey guys. A while ago one of my friends let me play fallout 3 on his xbox. I fell in love with it, but shortly after, he had to go home across the state.

So I decided to look it up on steam, lo and behold there is a goty version for $20. Being the poor person I am, I can't afford it for quite awhile. However, I have an extra copy of sanctum in my steam account that I can offer for a trade for this game.