For simple, don't overlook Palm Native Apps. They have a lot of useful features. Cutting and Pasting to put items in different places gives you reminders in different ways. It's less sophisticated but faster than using fancy apps with extra fields, more coding and filtered views that need to be set up and called up. Many Datebook Replacements / Agendas don't handle ToDo's as well as specific ToDo apps. The Palm ToDo app. may not be fancy, but it resolves on the screen quickly and is easy to manipulate.
Unless you grafitti your meeting notes, you will probably use paper for lengthy notes. The important thing for short notes is to get in and out of your system quickly and then take your time later to Process them. Palm ToDo is as convenient for input as anything - no setup, just start writing - and it deafults to Unfiled so what you write doesn't get mixed up with your already-Organized lists. Shortcut date/ time stamp on your notes may be helpful.