Well, here it goes. I actually did it a while back but forgot about it. I took it out today to take some pictures, though.
Here the you can see the small cpu fan that I put in there. I happened to have one that was the perfect size.
Here is where you can see how I had to cut into the speaker holder to get the fan to sit in there right.
Now that I have the fan out, my case temperature does seem to be a little hotter than when it was in there.