Thanks Steve, it does help a bit. I use a Palm Pilot, and I use DateBk6 as my 'primary' GTD tool (I also use ToDo plus) so I try to keep things under one category. In my situation, most everyone is "reporting back to me" with the exception of the President, so most if not all of his (The President) items go under agendas.
As a general rule of thumb, agendas are those that need to occur in real time interaction (I am paraphrasing from my notes I took while reading the book) and waiting for is when the next action on something is up to someone else. You don't need an action or reminder, just a 'trigger' . The thing is, like I mention, my position most every thing is something that is someone elses responsibility and I must make sure it is all getting done and moving along. What is getting me messed up is the step before delegating it to someone, then following up.