My Opinion
It would be super great if I could hear a sound (like picking up cargo) whenever someone messages me in-game because either I'm too busy fighting or too busy not looking at the chat interface.
/opinion

My Suggestions
I. Private Message Sound Notification
- A. Plays a sound when receiving private messages.
- - 1. Able to toggle notification on/off
- - - a. Selection list of sounds, ex: cargo pickup, launch mine, weapon sound, explosion, etc.
/suggestions

Try the SoundAlertSuite plugin. That will work for ya.

http://www.vendetta-online.com/x/msgboard/16/22074?page=2#348715

Thank you.