Thought I would give this a try...
there are lots of people buying/selling/trading their 360 games after they get sick of them
So, post what you have to trade, and what youre looking for. If you notice someone is looking for a game you have, and they have a game you want, reply to them. Might be a good idea to edit your posts after trades are made so your first list stays up to date without cluttering the thread. Consider trades permanent, this isnt for "borrowing". Original xbox games that are backwards compatible and work on 360 could be listed too, but make it clear that its not a 360 game.
Here is my list:
Have:
Oblivion
Condemned
Quake 4
Interested in:
Ghost Recon
Splinter Cell DA