Peer Review - So that each moderator cannot moderate their own content

I hope my wording is accurate and precise enough to get the idea across.

Basically, it seems that the current method is this:

1. Set up users as moderators
2. Various users submit content
3. Designated moderators can allow or disallow said content from being viewed publicly
4. Therefore if a moderator submits content, he or she can allow their own content.

I'd like to have the option (if possible) to set the permissions in such a manner that will dissallow item #4 from occurring. In other words, I don't want moderate Bob to be able to moderate Bob's content - I'd rather only every other moderator be allowed (So, only Joe, Bill, or Sue could moderate Bob's content).

For reference, here is where I originally posed the question in the forum board:
http://drupal.org/node/366160#comment-1238314

dman's comment probably summarizes the request better than I could:

It sounds like a sensible option for the moder8 module. A good way to enable peer review. Better than the current can-or-can't role permissions.