I posted a video to mod an intercooler as opposed to modifying the 360 itself. It's not elegant but it's a functional design, extremely efficient at venting air from one central location, and quieter than most other solutions. There are no revisions to the initail design.
http://youtube.com/watch?v=CQKfybWQnxY
http://youtube.com/watch?v=CQKfybWQnxY