I am searching for a mod/addon that will alert me when a player on my friends list comes online by a sound.  I have searched here and WowInterface but cannot find anything.  Does anyone know of a mod that will do this?  I just need like a "ding" or bell sound or any sound that will say "HEY...so and so just logged on".

Thanks

If you use FuBar, then get FriendsFu, which has a sound alert.