Too Much Heat! Need Some Input

[DrinkMore]

I finally finished "touching up" out wire problem for our plasma and in doing so I decided to dust and clean up the receiver/cable box and ps3.

There is a big issue with the Onkyo and the Comcast box getting super hot. Hot to the point the metal can burn you. So, for now - the comcast box is sitting on its side (vertical) to allow the Onkyo to breathe much better.

I guess my question is, is there something they make that can raise the boxes a few inches above each other so more air can flow? I guess they would be called feet. These sit in a cubby hole so that might not help.

Anyone know of a super THIN fan that I could buy? Like a box fan but much smaller?

Thanks! I will post a pic.