Private Messaging System

[eluser]FlashUK[/eluser]
Hi there,

I've pretty much thrown myself into the deep end and have started working on my first project with an MVC framework.

I have already integrated FreakAuth into application and have made subtle modifications (well, except for changing the structure to accept a birthday field/age restriction).

My Question: Is there an established PM system out there already? I've had a search on the forums and wiki but I didn't find anything. If I have clearly missed it, please point it out to me otherwise I am going to have to spend time writing my own.

I already have an idea of what structure it needs. I'm just wondering how I am going to manage group messages... hmm. Maybe we can start a discussion on this and I will code the module for the community?

Cheers