Kozmo, I saw a really great idea for hanging heavy things flush on a
wall just the other day. You could use bed rail fasteners. They are
like flat plates, one has 2 hooks, and the other has 2 slots. They
both need to be slightly inset into both pieces, but the strength of
the attachment is about 1000 times stronger than the cam locks, and
the item can simply be lifted and removed. I believe "woodcraft" "van
dyke's" and "rockler" carry those. Check the net or a search engine.

And for everyone else- they are also a great way to hang small
shelves on a wall- easier to level, super strong, and you can easily
remove the shelves from the hooks!

Hope this helped!