right the airtrap doesn't have that elbow, but it's very similar to yours.
With the hard drives in the cd-rom bays the only things going from the lower half of the case to the top are the ide and floppy cables, the main mobo power, and the airtrap.
I plan on having the radiator pushed foward into the gap between the bezel and the frame and even out the front of the case a quarter inch (the radiator is 2 inches deep). this leaves it protruding into the main case an inch or less. I'm trying to avoid cutting the mobo tray just because I like it nicely rounded the way it is. I will slice it if I must though. I was also considering using a box knife on the bezel, good to know it works cleanly
cutting up the cd rom cage is a great idea though, i didn't even consider that... I will now. Did you cut out the base of the cd rom cage back to that point too?