Hey Guys - I need to figure out a way to stack my components, but I don't want the receiver overheating. The reason I need to do this is that my entire back wall has the TV and fireplace with built-in bookshelves on both sides. The actual shelves aren't deep enough to put any components on, so I had to remove them. So is there a system or something that I could use to stack my components? The cleaner the better.. Thanks.