How to incorporate audio

I would like to offer the following on a website and have no idea where to start. Any ideas on what the best solutions would be?
How do I allow people at a website through an easy approach either by a speaker microphone or telephone (if they don't have a microphone or are not computer savy) to record a message (or many messages), the have them placed within these people's individual folder. Optimally, it would be great if it would be handfree for me and they could go to their space, hit something, record it (or via telephone) then a system would place it within the folder to listen to later. I would like it to be in a format that would require the people to come to the website to hear so they can't just download the message to a cd or computer.
the content would be messages from a few sentences to possibly about 10 minutes of audo. Many messages, many people. Longer term, I would like the same option with video but am concentrating on audio right now. The messages would be for the people to hear, not to be broadcast widely. I have my site hosted remotely.
I am also not an IT person (although I use programmers) so responses that aren't too technical would be helpful...